bromite/build/patches/Remove-binary-blob-integrations.patch

From: csagan5 <32685696+csagan5@users.noreply.github.com>
Date: Mon, 5 Apr 2021 21:37:12 +0200
Subject: Remove binary blob integrations

Remove dependency on com.google.android.gms.auth
kill GCM
Remove dependency on com.google.android.gcm
Remove dependency on com.google.android.gms.gcm
It also disables Snippets, auto-update of offline pages and launching browser from background service.
The snippets are already disabled in native codes, this will disable it on Java level.

Remove dependency on com.google.android.play
Remove dependency on vision, clearcut and phenotype
Remove dependency on flags, places and stats
Remove dependency on fido, iid, instantapps, location
Remove dependency on com.google.android.gms.cast
Remove dependency on auth, signin, dynamic and tasks
Remove google_services_gcm
ungoogled-chromium: Disable GCM
Disable Google Cloud Messaging (GCM) client
Disable web authentication phone support

Parts of this patch were developed by csagan5, uazo and others.
---
 ...em_webview_bundle.AndroidManifest.expected |   5 -
 chrome/android/BUILD.gn                       |  33 --
 chrome/android/chrome_java_sources.gni        |   5 -
 .../features/cablev2_authenticator/BUILD.gn   |   2 -
 chrome/android/java/AndroidManifest.xml       |  68 ---
 .../java/res/xml/privacy_preferences.xml      |   5 -
 .../org/chromium/chrome/browser/AppHooks.java |  14 +-
 .../browser/PlayServicesVersionInfo.java      |  12 +-
 .../ChromeBackgroundTaskFactory.java          |   3 -
 .../ExternalNavigationDelegateImpl.java       |   8 +-
 .../gcore/ChromeGoogleApiClientImpl.java      |  25 +-
 .../browser/gcore/GoogleApiClientHelper.java  |  82 +--
 .../instantapps/InstantAppsHandler.java       |  57 +-
 .../browser/omaha/UpdateStatusProvider.java   |  10 +-
 .../privacy/settings/PrivacySettings.java     |   5 -
 .../modules/chrome_feature_modules.gni        |   3 -
 chrome/browser/BUILD.gn                       |   2 -
 .../chromium/chrome/browser/gsa/GSAState.java |   4 +-
 chrome/browser/language/android/BUILD.gn      |   2 -
 .../language/AppLanguagePromoDialog.java      |  23 -
 .../AppLanguagePreferenceDelegate.java        |   8 -
 .../language/settings/LanguageSettings.java   |   6 -
 .../prefetch/prefetch_service_factory.cc      |  16 -
 .../browser/password_manager/android/BUILD.gn |   2 -
 ...PasswordStoreAndroidBackendBridgeImpl.java |  21 -
 ...swordSyncControllerDelegateBridgeImpl.java |   7 -
 .../push_messaging_service_factory.cc         |   8 +-
 chrome/browser/ui/BUILD.gn                    |   3 -
 .../webui/chrome_web_ui_controller_factory.cc |   3 -
 chrome/test/android/BUILD.gn                  |   2 -
 components/background_task_scheduler/BUILD.gn |   5 -
 .../internal/BUILD.gn                         |  10 -
 .../BackgroundTaskGcmTaskService.java         | 160 ------
 ...ackgroundTaskSchedulerFactoryInternal.java |   6 +-
 ...kgroundTaskSchedulerGcmNetworkManager.java | 257 ---------
 .../component_updater/UpdateScheduler.java    |   1 -
 components/externalauth/android/BUILD.gn      |   3 -
 .../externalauth/ExternalAuthUtils.java       |  18 +-
 .../UserRecoverableErrorHandler.java          |   7 -
 .../gcm_driver/GoogleCloudMessagingV2.java    |   2 +
 components/gcm_driver/gcm_client_impl.cc      |   4 +
 .../gcm_driver/instance_id/android/BUILD.gn   |   3 -
 .../instance_id/InstanceIDBridge.java         |  47 +-
 .../media_router/browser/android/BUILD.gn     |   9 -
 .../media_router/BrowserMediaRouter.java      |  18 +-
 .../media_router/CastSessionUtil.java         |  35 --
 .../components/media_router/MediaSink.java    |  44 +-
 .../media_router/MediaStatusBridge.java       |  40 +-
 .../caf/BaseNotificationController.java       |  52 --
 .../caf/BaseSessionController.java            | 100 +---
 .../caf/CafBaseMediaRouteProvider.java        | 114 +---
 .../caf/CafMediaRouteProvider.java            |  16 -
 .../media_router/caf/CafMessageHandler.java   |  97 +---
 .../media_router/caf/CastMediaSource.java     |  10 +-
 .../media_router/caf/CastOptionsProvider.java |  22 +-
 .../caf/CastSessionController.java            |  84 ---
 .../media_router/caf/CastUtils.java           |   8 -
 .../CafExpandedControllerActivity.java        |  41 +-
 .../CafRemotingMediaRouteProvider.java        |   5 +-
 .../remoting/FlingingControllerAdapter.java   |  74 ---
 .../caf/remoting/RemotingMediaSource.java     |   8 +-
 .../remoting/RemotingSessionController.java   |  26 -
 .../test/android/cast_emulator/BUILD.gn       |   1 -
 components/module_installer/android/BUILD.gn  |   2 -
 components/signin/public/android/BUILD.gn     |   4 -
 components/webauthn/android/BUILD.gn          |  10 -
 .../webauthn/AuthenticatorImpl.java           |  30 -
 .../push_messaging/push_messaging_manager.cc  |   2 +-
 content/public/android/BUILD.gn               |   4 -
 content/public/common/content_features.cc     |   4 +-
 content/test/BUILD.gn                         |   4 -
 device/BUILD.gn                               |   3 -
 device/fido/features.cc                       |   4 +-
 remoting/android/client_java_tmpl.gni         |   3 -
 services/BUILD.gn                             |   9 -
 services/device/geolocation/BUILD.gn          |   3 -
 services/shape_detection/BUILD.gn             |   4 -
 third_party/android_deps/BUILD.gn             | 540 +-----------------
 .../preconditions/javatests/BUILD.gn          |   1 -
 .../gms/ChromiumPlayServicesAvailability.java |  10 +-
 80 files changed, 68 insertions(+), 2340 deletions(-)
 delete mode 100644 components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskGcmTaskService.java
 delete mode 100644 components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerGcmNetworkManager.java

diff --git a/android_webview/expectations/system_webview_bundle.AndroidManifest.expected b/android_webview/expectations/system_webview_bundle.AndroidManifest.expected
--- a/android_webview/expectations/system_webview_bundle.AndroidManifest.expected
+++ b/android_webview/expectations/system_webview_bundle.AndroidManifest.expected
@@ -19,10 +19,6 @@
       android:label="Android System WebView"
       android:multiArch="true"
       android:use32bitAbi="true">
-    <activity  # DIFF-ANCHOR: ea1a94af
-        android:name="com.google.android.gms.common.api.GoogleApiActivity"
-        android:exported="false"
-        android:theme="@android:style/Theme.Translucent.NoTitleBar">
     </activity>  # DIFF-ANCHOR: ea1a94af
     <activity  # DIFF-ANCHOR: a4438884
         android:name="org.chromium.android_webview.devui.MainActivity"
@@ -66,7 +62,6 @@
         android:visibleToInstantApps="true">
     </activity-alias>  # DIFF-ANCHOR: b7cc06e9
     <meta-data android:name="$PACKAGE.WebViewLibrary" android:value="libwebviewchromium.so"/>
-    <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version"/>
     <meta-data android:name="org.chromium.content.browser.NUM_PRIVILEGED_SERVICES" android:value="0"/>
     <meta-data android:name="org.chromium.content.browser.NUM_SANDBOXED_SERVICES" android:value="40"/>
     <provider  # DIFF-ANCHOR: a5e78e63
diff --git a/chrome/android/BUILD.gn b/chrome/android/BUILD.gn
--- a/chrome/android/BUILD.gn
+++ b/chrome/android/BUILD.gn
@@ -326,14 +326,6 @@ android_library("chrome_java") {
     ":chrome_public_apk_template_resources",
     ":update_proto_java",
     ":usage_stats_proto_java",
-    "$google_play_services_package:google_play_services_auth_base_java",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_cast_framework_java",
-    "$google_play_services_package:google_play_services_cast_java",
-    "$google_play_services_package:google_play_services_gcm_java",
-    "$google_play_services_package:google_play_services_iid_java",
-    "$google_play_services_package:google_play_services_tasks_java",
     "//base:base_java",
     "//cc:cc_java",
     "//chrome/android/features/keyboard_accessory:public_java",
@@ -606,7 +598,6 @@ android_library("chrome_java") {
     "//skia/public/mojom:mojom_java",
     "//third_party/android_deps:android_support_v7_appcompat_java",
     "//third_party/android_deps:chromium_play_services_availability_java",
-    "//third_party/android_deps:com_google_android_play_core_java",
     "//third_party/android_deps:com_google_code_findbugs_jsr305_java",
     "//third_party/android_deps:com_google_guava_listenablefuture_java",
     "//third_party/android_deps:dagger_java",
@@ -937,10 +928,6 @@ junit_binary("chrome_junit_tests") {
     ":chrome_jni_headers",
     ":chrome_public_android_manifest",
     ":delegate_public_impl_java",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_cast_framework_java",
-    "$google_play_services_package:google_play_services_cast_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:base_junit_test_support",
@@ -1317,13 +1304,6 @@ android_library("chrome_test_java") {
     ":chrome_test_util_java",
     ":chrome_test_util_jni",
     ":delegate_public_impl_java",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_cast_framework_java",
-    "$google_play_services_package:google_play_services_cast_java",
-    "$google_play_services_package:google_play_services_gcm_java",
-    "$google_play_services_package:google_play_services_iid_java",
-    "$google_play_services_package:google_play_services_tasks_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base/test:test_support_java",
@@ -2405,7 +2385,6 @@ android_library("browser_java_test_support") {
   ]
   deps = [
     ":chrome_java",
-    "$google_play_services_package:google_play_services_gcm_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:jni_java",
@@ -2555,9 +2534,7 @@ android_library("base_monochrome_module_java") {
 android_library("base_module_java") {
   sources = [
     "../browser/attribution_reporting/android/java/src/org/chromium/chrome/browser/attribution_reporting/AttributionReportingProvider.java",
-    "java/src/com/google/ipc/invalidation/ticl/android2/channel/GcmRegistrationTaskService.java",
     "java/src/org/chromium/chrome/app/TrichromeZygotePreload.java",
-    "java/src/org/chromium/chrome/browser/ChromeBackgroundService.java",
     "java/src/org/chromium/chrome/browser/ChromeBackupAgent.java",
     "java/src/org/chromium/chrome/browser/DeferredStartupHandler.java",
     "java/src/org/chromium/chrome/browser/base/DexFixer.java",
@@ -2568,8 +2545,6 @@ android_library("base_module_java") {
     "java/src/org/chromium/chrome/browser/base/SplitCompatBackupAgent.java",
     "java/src/org/chromium/chrome/browser/base/SplitCompatContentProvider.java",
     "java/src/org/chromium/chrome/browser/base/SplitCompatCustomTabsService.java",
-    "java/src/org/chromium/chrome/browser/base/SplitCompatGcmListenerService.java",
-    "java/src/org/chromium/chrome/browser/base/SplitCompatGcmTaskService.java",
     "java/src/org/chromium/chrome/browser/base/SplitCompatIntentService.java",
     "java/src/org/chromium/chrome/browser/base/SplitCompatJobService.java",
     "java/src/org/chromium/chrome/browser/base/SplitCompatMinidumpUploadJobService.java",
@@ -2594,16 +2569,10 @@ android_library("base_module_java") {
     "java/src/org/chromium/chrome/browser/photo_picker/DecoderService.java",
     "java/src/org/chromium/chrome/browser/prerender/ChromePrerenderService.java",
     "java/src/org/chromium/chrome/browser/provider/ChromeBrowserProvider.java",
-    "java/src/org/chromium/chrome/browser/services/gcm/ChromeGcmListenerService.java",
-    "java/src/org/chromium/chrome/browser/services/gcm/GCMBackgroundService.java",
-    "java/src/org/chromium/chrome/browser/services/gcm/InvalidationGcmUpstreamSender.java",
     "java/src/org/chromium/chrome/browser/tracing/TracingNotificationService.java",
   ]
   deps = [
     ":chrome_base_module_resources",
-    "$google_play_services_package:google_firebase_firebase_iid_java",
-    "$google_play_services_package:google_firebase_firebase_messaging_java",
-    "$google_play_services_package:google_play_services_gcm_java",
     "//base:base_java",
     "//chrome/browser/download/android:file_provider_java",
     "//chrome/browser/flags:java",
@@ -2616,7 +2585,6 @@ android_library("base_module_java") {
     "//components/media_router/browser/android:cast_options_provider_java",
     "//components/minidump_uploader:minidump_uploader_java",
     "//components/module_installer/android:module_installer_java",
-    "//third_party/android_deps:com_google_android_play_core_java",
     "//third_party/androidx:androidx_annotation_annotation_java",
     "//third_party/androidx:androidx_collection_collection_java",
     "//third_party/androidx:androidx_fragment_fragment_java",
@@ -2638,7 +2606,6 @@ android_library("base_module_java") {
     # Deps to pull services into base module.
     # TODO(crbug.com/1126301): Consider moving these to the chrome module to
     # reduce base dex size.
-    "$google_play_services_package:google_play_services_cast_framework_java",
     "//components/background_task_scheduler:background_task_scheduler_java",
     "//components/payments/content/android:service_java",
     "//third_party/androidx:androidx_browser_browser_java",
diff --git a/chrome/android/chrome_java_sources.gni b/chrome/android/chrome_java_sources.gni
--- a/chrome/android/chrome_java_sources.gni
+++ b/chrome/android/chrome_java_sources.gni
@@ -17,7 +17,6 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/ChromeActionModeHandler.java",
   "java/src/org/chromium/chrome/browser/ChromeActivitySessionTracker.java",
   "java/src/org/chromium/chrome/browser/ChromeApplicationImpl.java",
-  "java/src/org/chromium/chrome/browser/ChromeBackgroundServiceImpl.java",
   "java/src/org/chromium/chrome/browser/ChromeBackupAgentImpl.java",
   "java/src/org/chromium/chrome/browser/ChromeBackupWatcher.java",
   "java/src/org/chromium/chrome/browser/ChromeBaseAppCompatActivity.java",
@@ -936,10 +935,6 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/searchwidget/SearchType.java",
   "java/src/org/chromium/chrome/browser/searchwidget/SearchWidgetProvider.java",
   "java/src/org/chromium/chrome/browser/send_tab_to_self/SendTabToSelfShareActivity.java",
-  "java/src/org/chromium/chrome/browser/services/gcm/ChromeGcmListenerServiceImpl.java",
-  "java/src/org/chromium/chrome/browser/services/gcm/GCMBackgroundServiceImpl.java",
-  "java/src/org/chromium/chrome/browser/services/gcm/GCMBackgroundTask.java",
-  "java/src/org/chromium/chrome/browser/services/gcm/GcmUma.java",
   "java/src/org/chromium/chrome/browser/settings/MainSettings.java",
   "java/src/org/chromium/chrome/browser/settings/SettingsActivity.java",
   "java/src/org/chromium/chrome/browser/settings/SettingsLauncherImpl.java",
diff --git a/chrome/android/features/cablev2_authenticator/BUILD.gn b/chrome/android/features/cablev2_authenticator/BUILD.gn
--- a/chrome/android/features/cablev2_authenticator/BUILD.gn
+++ b/chrome/android/features/cablev2_authenticator/BUILD.gn
@@ -16,8 +16,6 @@ android_library("java") {
   deps = [
     ":java_resources",
     ":logging_java",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_tasks_java",
     "//base:base_java",
     "//chrome/browser/webauthn/android:java_resources",
     "//components/webauthn/android:java",
diff --git a/chrome/android/java/AndroidManifest.xml b/chrome/android/java/AndroidManifest.xml
--- a/chrome/android/java/AndroidManifest.xml
+++ b/chrome/android/java/AndroidManifest.xml
@@ -102,21 +102,16 @@ by a child template that "extends" this file.
     <permission android:name="{{ manifest_package }}.permission.CHILD_SERVICE" android:protectionLevel="signature" />
     <permission android:name="{{ manifest_package }}.permission.READ_WRITE_BOOKMARK_FOLDERS" android:protectionLevel="signatureOrSystem" />
     <permission android:name="{{ manifest_package }}.TOS_ACKED" android:protectionLevel="signatureOrSystem" />
-    <!-- Only chrome can receive the messages and registration result -->
-    <permission android:name="{{ manifest_package }}.permission.C2D_MESSAGE"
-        android:protectionLevel="signature" />
     <permission android:name="{{ manifest_package }}.permission.DEBUG"
                 android:label="Debug web pages"
                 android:protectionLevel="signature" />
     <permission android:name="{{ manifest_package }}.permission.TRANSLATE"
         android:protectionLevel="signature" />
 
-    <uses-permission android:name="{{ manifest_package }}.permission.C2D_MESSAGE" />
     <uses-permission android:name="{{ manifest_package }}.permission.READ_WRITE_BOOKMARK_FOLDERS" />
     <uses-permission android:name="{{ manifest_package }}.TOS_ACKED" />
 
     <uses-permission android:name="com.chrome.permission.DEVICE_EXTRAS" />
-    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
     <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"/>
 
     {% block extra_uses_permissions %}
@@ -747,16 +742,6 @@ by a child template that "extends" this file.
             </intent-filter>
         </activity>
 
-        <activity android:name="org.chromium.components.media_router.caf.remoting.CafExpandedControllerActivity"
-            android:theme="@style/Theme.Chromium.Activity"
-            android:label="Chrome.CafExpandedControllerActivity"
-            android:hardwareAccelerated="true"
-            android:launchMode="singleTask"
-            android:noHistory="true"
-            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|mcc|mnc|screenLayout|smallestScreenSize"
-            android:excludeFromRecents="true">
-        </activity>
-
         <!-- This activity is used to restart the main Chrome process.  Should never be exported. -->
         <activity android:name="org.chromium.chrome.browser.BrowserRestartActivity"
             android:launchMode="singleInstance"
@@ -820,15 +805,6 @@ by a child template that "extends" this file.
             </intent-filter>
         </activity>
 
-        <!-- Activity for dispatching intents to Instant Apps. -->
-        <activity
-            android:name="org.chromium.chrome.browser.instantapps.AuthenticatedProxyActivity"
-            android:exported="false"
-            android:theme="@style/Theme.BrowserUI.NoDisplay"
-            android:noHistory="true"
-            android:excludeFromRecents="true">
-        </activity>
-
         <activity
             android:name="org.chromium.chrome.browser.vr.VrCancelAnimationActivity"
             android:exported="false"
@@ -1002,26 +978,6 @@ by a child template that "extends" this file.
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|mcc|mnc|screenLayout|smallestScreenSize"
             android:hardwareAccelerated="false" />
 
-        <!-- GcmTaskService for registration for Invalidations. Not actually implemented anymore. -->
-        <service android:name="com.google.ipc.invalidation.ticl.android2.channel.GcmRegistrationTaskService"
-            android:exported="true"
-            android:permission="com.google.android.gms.permission.BIND_NETWORK_TASK_SERVICE" >
-            <intent-filter>
-                <action android:name="com.google.android.gms.gcm.ACTION_TASK_READY"/>
-            </intent-filter>
-        </service>
-        <!-- GcmListenerService for messages from GCM. -->
-        <service android:name="org.chromium.chrome.browser.services.gcm.ChromeGcmListenerService"
-            android:exported="false" >
-            <intent-filter>
-                <action android:name="com.google.firebase.MESSAGING_EVENT" />
-            </intent-filter>
-        </service>
-        <service android:name="org.chromium.chrome.browser.services.gcm.GCMBackgroundService"
-            android:exported="false"/>
-        <service android:name="org.chromium.chrome.browser.services.gcm.InvalidationGcmUpstreamSender"
-            android:exported="false"/>
-
         <!-- Android Notification service listener -->
         <service android:name="org.chromium.chrome.browser.notifications.NotificationService"
             android:exported="false"/>
@@ -1053,28 +1009,10 @@ by a child template that "extends" this file.
             android:exported="false"
             android:permission="android.permission.BIND_JOB_SERVICE"/>
 
-        <!-- Background Task Scheduler GCM task service -->
-        <service android:name="org.chromium.components.background_task_scheduler.internal.BackgroundTaskGcmTaskService"
-            android:permission="com.google.android.gms.permission.BIND_NETWORK_TASK_SERVICE"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="com.google.android.gms.gcm.ACTION_TASK_READY" />
-            </intent-filter>
-        </service>
-
         <!-- Background Task Scheduler alarm receiver -->
         <receiver android:name="org.chromium.components.background_task_scheduler.internal.BackgroundTaskBroadcastReceiver"
             android:exported="false" />
 
-        <!-- GcmTaskService implementation to wake Chrome on scheduled events -->
-        <service android:name="org.chromium.chrome.browser.ChromeBackgroundService"
-            android:permission="com.google.android.gms.permission.BIND_NETWORK_TASK_SERVICE"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="com.google.android.gms.gcm.ACTION_TASK_READY" />
-            </intent-filter>
-        </service>
-
         <service android:name="org.chromium.chrome.browser.prerender.ChromePrerenderService"
             android:exported="true"
             tools:ignore="ExportedService" />
@@ -1293,12 +1231,6 @@ by a child template that "extends" this file.
       <meta-data android:name="com.google.ar.core" android:value="optional" />
       {% endif %}
 
-      <!-- Cast support -->
-      <meta-data
-          android:name=
-          "com.google.android.gms.cast.framework.OPTIONS_PROVIDER_CLASS_NAME"
-          android:value="org.chromium.components.media_router.caf.CastOptionsProvider"/>
-
       <!-- These providers are declared in the base module to give the chrome
            split preloader more time to work. -->
       <provider android:name="org.chromium.chrome.browser.util.ChromeFileProvider"
diff --git a/chrome/android/java/res/xml/privacy_preferences.xml b/chrome/android/java/res/xml/privacy_preferences.xml
--- a/chrome/android/java/res/xml/privacy_preferences.xml
+++ b/chrome/android/java/res/xml/privacy_preferences.xml
@@ -80,9 +80,4 @@
           android:summary="@string/autocomplete_searches_and_urls_summary"
           android:persistent="false"/>
     </PreferenceCategory>
-    <Preference
-        android:key="phone_as_a_security_key"
-        android:title="@string/cablev2_paask_title"
-        android:summary="@string/cablev2_paask_body"
-        android:fragment="org.chromium.chrome.browser.webauthn.PrivacySettingsFragment"/>
 </PreferenceScreen>
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java b/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
@@ -10,9 +10,6 @@ import android.content.pm.PackageManager;
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 
-import com.google.android.gms.common.ConnectionResult;
-import com.google.android.gms.common.GoogleApiAvailability;
-
 import org.chromium.base.ContextUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.browser.customtabs.CustomTabsConnection;
@@ -266,16 +263,7 @@ public abstract class AppHooks {
      * same as {@link GoogleApiAvailability#isGooglePlayServicesAvailable()}.
      */
     public int isGoogleApiAvailableWithMinApkVersion(int minApkVersion) {
-        try {
-            PackageInfo gmsPackageInfo =
-                    ContextUtils.getApplicationContext().getPackageManager().getPackageInfo(
-                            GoogleApiAvailability.GOOGLE_PLAY_SERVICES_PACKAGE, /* flags= */ 0);
-            int apkVersion = gmsPackageInfo.versionCode;
-            if (apkVersion >= minApkVersion) return ConnectionResult.SUCCESS;
-        } catch (PackageManager.NameNotFoundException e) {
-            return ConnectionResult.SERVICE_MISSING;
-        }
-        return ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED;
+        return 1;  /* SERVICE_MISSING*/
     }
 
     /**
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/PlayServicesVersionInfo.java b/chrome/android/java/src/org/chromium/chrome/browser/PlayServicesVersionInfo.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/PlayServicesVersionInfo.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/PlayServicesVersionInfo.java
@@ -7,8 +7,6 @@ package org.chromium.chrome.browser;
 import android.content.Context;
 import android.content.pm.PackageManager;
 
-import com.google.android.gms.common.GoogleApiAvailability;
-
 import org.chromium.base.ContextUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.components.externalauth.ExternalAuthUtils;
@@ -29,7 +27,7 @@ public class PlayServicesVersionInfo {
     public static String getGmsInfo() {
         Context context = ContextUtils.getApplicationContext();
 
-        final long sdkVersion = GoogleApiAvailability.GOOGLE_PLAY_SERVICES_VERSION_CODE;
+        final long sdkVersion = 12600000;
         final long installedGmsVersion = getApkVersionNumber(context);
 
         final String accessType;
@@ -53,12 +51,6 @@ public class PlayServicesVersionInfo {
      *         package is not found.
      */
     public static int getApkVersionNumber(Context context) {
-        try {
-            return context.getPackageManager()
-                    .getPackageInfo(GoogleApiAvailability.GOOGLE_PLAY_SERVICES_PACKAGE, 0)
-                    .versionCode;
-        } catch (PackageManager.NameNotFoundException e) {
-            return 0;
-        }
+        return 0;
     }
 }
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/background_task_scheduler/ChromeBackgroundTaskFactory.java b/chrome/android/java/src/org/chromium/chrome/browser/background_task_scheduler/ChromeBackgroundTaskFactory.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/background_task_scheduler/ChromeBackgroundTaskFactory.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/background_task_scheduler/ChromeBackgroundTaskFactory.java
@@ -16,7 +16,6 @@ import org.chromium.chrome.browser.notifications.scheduler.NotificationScheduler
 import org.chromium.chrome.browser.offlinepages.OfflineBackgroundTask;
 import org.chromium.chrome.browser.offlinepages.prefetch.PrefetchBackgroundTask;
 import org.chromium.chrome.browser.omaha.OmahaService;
-import org.chromium.chrome.browser.services.gcm.GCMBackgroundTask;
 import org.chromium.chrome.browser.webapps.WebApkUpdateTask;
 import org.chromium.components.background_task_scheduler.BackgroundTask;
 import org.chromium.components.background_task_scheduler.BackgroundTaskFactory;
@@ -57,8 +56,6 @@ public class ChromeBackgroundTaskFactory implements BackgroundTaskFactory {
         switch (taskId) {
             case TaskIds.OMAHA_JOB_ID:
                 return new OmahaService();
-            case TaskIds.GCM_BACKGROUND_TASK_JOB_ID:
-                return new GCMBackgroundTask();
             case TaskIds.OFFLINE_PAGES_BACKGROUND_JOB_ID:
                 return new OfflineBackgroundTask();
             case TaskIds.OFFLINE_PAGES_PREFETCH_JOB_ID:
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationDelegateImpl.java b/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationDelegateImpl.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationDelegateImpl.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationDelegateImpl.java
@@ -194,12 +194,8 @@ public class ExternalNavigationDelegateImpl implements ExternalNavigationDelegat
 
     @Override
     public void maybeAdjustInstantAppExtras(Intent intent, boolean isIntentToInstantApp) {
-        if (isIntentToInstantApp) {
-            intent.putExtra(InstantAppsHandler.IS_GOOGLE_SEARCH_REFERRER, true);
-        } else {
-            // Make sure this extra is not sent unless we've done the verification.
-            intent.removeExtra(InstantAppsHandler.IS_GOOGLE_SEARCH_REFERRER);
-        }
+        // Always remove this extra
+        intent.removeExtra(InstantAppsHandler.IS_GOOGLE_SEARCH_REFERRER);
     }
 
     @Override
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/gcore/ChromeGoogleApiClientImpl.java b/chrome/android/java/src/org/chromium/chrome/browser/gcore/ChromeGoogleApiClientImpl.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/gcore/ChromeGoogleApiClientImpl.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/gcore/ChromeGoogleApiClientImpl.java
@@ -6,9 +6,6 @@ package org.chromium.chrome.browser.gcore;
 
 import android.content.Context;
 
-import com.google.android.gms.common.ConnectionResult;
-import com.google.android.gms.common.api.GoogleApiClient;
-
 import org.chromium.base.Log;
 import org.chromium.base.TraceEvent;
 import org.chromium.components.externalauth.ExternalAuthUtils;
@@ -22,7 +19,6 @@ public class ChromeGoogleApiClientImpl implements ChromeGoogleApiClient {
     private static final String TAG = "Icing";
 
     private final Context mApplicationContext;
-    private final GoogleApiClient mClient;
     private final ExternalAuthUtils mExternalAuthUtils;
 
     /**
@@ -32,10 +28,9 @@ public class ChromeGoogleApiClientImpl implements ChromeGoogleApiClient {
      * @param requireFirstPartyBuild true if the given client can only be used in a first-party
      *            build.
      */
-    public ChromeGoogleApiClientImpl(Context context, GoogleApiClient client,
+    public ChromeGoogleApiClientImpl(Context context,
             boolean requireFirstPartyBuild) {
         mApplicationContext = context.getApplicationContext();
-        mClient = client;
         mExternalAuthUtils = ExternalAuthUtils.getInstance();
         if (requireFirstPartyBuild && !mExternalAuthUtils.isChromeGoogleSigned()) {
             throw new IllegalStateException("GoogleApiClient requires first-party build");
@@ -44,7 +39,6 @@ public class ChromeGoogleApiClientImpl implements ChromeGoogleApiClient {
 
     @Override
     public void disconnect() {
-        mClient.disconnect();
     }
 
     @Override
@@ -60,24 +54,11 @@ public class ChromeGoogleApiClientImpl implements ChromeGoogleApiClient {
     @Override
     public boolean connectWithTimeout(long timeout) {
         TraceEvent.begin("ChromeGoogleApiClientImpl:connectWithTimeout");
-        try {
-            ConnectionResult result = mClient.blockingConnect(timeout, TimeUnit.MILLISECONDS);
-            if (!result.isSuccess()) {
-                Log.e(TAG, "Connection to GmsCore unsuccessful. Error %d", result.getErrorCode());
-            } else {
-                Log.d(TAG, "Connection to GmsCore successful.");
-            }
-            return result.isSuccess();
-        } finally {
-            TraceEvent.end("ChromeGoogleApiClientImpl:connectWithTimeout");
-        }
+        TraceEvent.end("ChromeGoogleApiClientImpl:connectWithTimeout");
+        return false;
     }
 
     public Context getApplicationContext() {
         return mApplicationContext;
     }
-
-    public GoogleApiClient getApiClient() {
-        return mClient;
-    }
 }
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/gcore/GoogleApiClientHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/gcore/GoogleApiClientHelper.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/gcore/GoogleApiClientHelper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/gcore/GoogleApiClientHelper.java
@@ -7,11 +7,6 @@ package org.chromium.chrome.browser.gcore;
 import android.os.Bundle;
 import android.os.Handler;
 
-import com.google.android.gms.common.ConnectionResult;
-import com.google.android.gms.common.api.GoogleApiClient;
-import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
-import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
-
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.ApplicationStatus.ApplicationStateListener;
 import org.chromium.base.Log;
@@ -67,29 +62,15 @@ import org.chromium.base.ThreadUtils;
  * }
  * </pre>
  */
-public class GoogleApiClientHelper
-        implements OnConnectionFailedListener, ConnectionCallbacks {
+public class GoogleApiClientHelper {
     private static final String TAG = "GCore";
 
     private int mResolutionAttempts;
     private boolean mWasConnectedBefore;
     private final Handler mHandler = new Handler(ThreadUtils.getUiThreadLooper());
-    private final GoogleApiClient mClient;
     private long mDisconnectionDelayMs;
     private Runnable mPendingDisconnect;
 
-    /**
-     * Creates a helper and enrolls it in the various connection management features.
-     * See the class documentation for {@link GoogleApiClientHelper} for more information.
-     *
-     * @param client The client to wrap.
-     */
-    public GoogleApiClientHelper(GoogleApiClient client) {
-        mClient = client;
-        enableConnectionRetrying(true);
-        enableLifecycleManagement(true);
-    }
-
     /**
      * Opts in or out of lifecycle management. The client's connection will be closed and reopened
      * when Chrome goes in and out of background.
@@ -116,13 +97,6 @@ public class GoogleApiClientHelper
      * Enabling or disabling it while it is already enabled or disabled has no effect.
      */
     public void enableConnectionRetrying(boolean enabled) {
-        if (enabled) {
-            mClient.registerConnectionCallbacks(this);
-            mClient.registerConnectionFailedListener(this);
-        } else {
-            mClient.unregisterConnectionCallbacks(this);
-            mClient.unregisterConnectionFailedListener(this);
-        }
     }
 
     /**
@@ -155,21 +129,11 @@ public class GoogleApiClientHelper
         // Cancel and reschedule the disconnection if we are in the background. We do it early to
         // avoid race conditions between a disconnect on the UI thread and the connect below.
         if (!ApplicationStatus.hasVisibleActivities()) scheduleDisconnection();
-
-        // The client might be disconnected if we were idle in the background for too long.
-        if (!mClient.isConnected() && !mClient.isConnecting()) {
-            Log.d(TAG, "Reconnecting the client.");
-            mClient.connect();
-        }
     }
 
     void restoreConnectedState() {
         // If we go back to the foreground before a delayed disconnect happens, cancel it.
         cancelPendingDisconnection();
-
-        if (mWasConnectedBefore) {
-            mClient.connect();
-        }
     }
 
     /**
@@ -192,12 +156,6 @@ public class GoogleApiClientHelper
     }
 
     private void disconnect() {
-        if (mClient.isConnected() || mClient.isConnecting()) {
-            mWasConnectedBefore = true;
-        }
-
-        // We always call disconnect to abort possibly pending connection requests.
-        mClient.disconnect();
     }
 
     private void cancelPendingDisconnection() {
@@ -207,43 +165,7 @@ public class GoogleApiClientHelper
         mPendingDisconnect = null;
     }
 
-    @Override
-    public void onConnectionFailed(ConnectionResult result) {
-        if (!isErrorRecoverableByRetrying(result.getErrorCode())) {
-            Log.d(TAG, "Not retrying managed client connection. Unrecoverable error: %d",
-                    result.getErrorCode());
-            return;
-        }
-
-        if (mResolutionAttempts < ConnectedTask.RETRY_NUMBER_LIMIT) {
-            Log.d(TAG, "Retrying managed client connection. attempt %d/%d - errorCode: %d",
-                    mResolutionAttempts, ConnectedTask.RETRY_NUMBER_LIMIT, result.getErrorCode());
-            mResolutionAttempts += 1;
-
-            mHandler.postDelayed(new Runnable() {
-                @Override
-                public void run() {
-                    mClient.connect();
-                }
-            }, ConnectedTask.CONNECTION_RETRY_TIME_MS);
-        }
-    }
-
-    @Override
-    public void onConnected(Bundle connectionHint) {
-        mResolutionAttempts = 0;
-    }
-
-    @Override
-    public void onConnectionSuspended(int cause) {
-        // GoogleApiClient handles retrying on suspension itself. Logging in case it didn't succeed
-        // for some reason.
-        Log.w(TAG, "Managed client connection suspended. Cause: %d", cause);
-    }
-
     private static boolean isErrorRecoverableByRetrying(int errorCode) {
-        return errorCode == ConnectionResult.INTERNAL_ERROR
-                || errorCode == ConnectionResult.NETWORK_ERROR
-                || errorCode == ConnectionResult.SERVICE_UPDATING;
+        return false;
     }
 }
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
@@ -41,31 +41,10 @@ public class InstantAppsHandler {
     // TODO(mariakhomenko): Use system once we roll to O SDK.
     private static final int FLAG_DO_NOT_LAUNCH = 0x00000200;
 
-    // TODO(mariakhomenko): Depend directly on the constants once we roll to v8 libraries.
-    private static final String DO_NOT_LAUNCH_EXTRA =
-            "com.google.android.gms.instantapps.DO_NOT_LAUNCH_INSTANT_APP";
-
-    protected static final String IS_REFERRER_TRUSTED_EXTRA =
-            "com.google.android.gms.instantapps.IS_REFERRER_TRUSTED";
-
-    protected static final String IS_USER_CONFIRMED_LAUNCH_EXTRA =
-            "com.google.android.gms.instantapps.IS_USER_CONFIRMED_LAUNCH";
-
-    protected static final String TRUSTED_REFERRER_PKG_EXTRA =
-            "com.google.android.gms.instantapps.TRUSTED_REFERRER_PKG";
-
+    // this is kept to always remove it from intents
     public static final String IS_GOOGLE_SEARCH_REFERRER =
             "com.google.android.gms.instantapps.IS_GOOGLE_SEARCH_REFERRER";
 
-    private static final String BROWSER_LAUNCH_REASON =
-            "com.google.android.gms.instantapps.BROWSER_LAUNCH_REASON";
-
-    private static final String SUPERVISOR_PKG = "com.google.android.instantapps.supervisor";
-
-    private static final String[] SUPERVISOR_START_ACTIONS = {
-            "com.google.android.instantapps.START", "com.google.android.instantapps.nmr1.INSTALL",
-            "com.google.android.instantapps.nmr1.VIEW"};
-
     // Only two possible call sources for fallback intents, set boundary at n+1.
     private static final int SOURCE_BOUNDARY = 3;
 
@@ -85,14 +64,6 @@ public class InstantAppsHandler {
      * @return Whether the given intent is going to open an Instant App.
      */
     public static boolean isIntentToInstantApp(Intent intent) {
-        if (SUPERVISOR_PKG.equals(intent.getPackage())) return true;
-
-        String intentAction = intent.getAction();
-        for (String action : SUPERVISOR_START_ACTIONS) {
-            if (action.equals(intentAction)) {
-                return true;
-            }
-        }
         return false;
     }
 
@@ -127,20 +98,6 @@ public class InstantAppsHandler {
      * @param intent The current intent.
      */
     private void maybeRecordFallbackStats(Intent intent) {
-        Long startTime = IntentUtils.safeGetLongExtra(intent, INSTANT_APP_START_TIME_EXTRA, 0);
-        if (startTime > 0) {
-            RecordHistogram.recordTimesHistogram("Android.InstantApps.FallbackDuration",
-                    SystemClock.elapsedRealtime() - startTime);
-            intent.removeExtra(INSTANT_APP_START_TIME_EXTRA);
-        }
-        int callSource = IntentUtils.safeGetIntExtra(intent, BROWSER_LAUNCH_REASON, 0);
-        if (callSource > 0 && callSource < SOURCE_BOUNDARY) {
-            RecordHistogram.recordEnumeratedHistogram(
-                    "Android.InstantApps.CallSource", callSource, SOURCE_BOUNDARY);
-            intent.removeExtra(BROWSER_LAUNCH_REASON);
-        } else if (callSource >= SOURCE_BOUNDARY) {
-            Log.e(TAG, "Unexpected call source constant for Instant Apps: " + callSource);
-        }
     }
 
     /**
@@ -175,14 +132,6 @@ public class InstantAppsHandler {
             return false;
         }
 
-        if (IntentUtils.safeGetBooleanExtra(intent, DO_NOT_LAUNCH_EXTRA, false)
-                || (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
-                           && (intent.getFlags() & FLAG_DO_NOT_LAUNCH) != 0)) {
-            maybeRecordFallbackStats(intent);
-            Log.i(TAG, "Not handling with Instant Apps (DO_NOT_LAUNCH_EXTRA)");
-            return false;
-        }
-
         if (IntentUtils.safeGetBooleanExtra(
                     intent, IntentHandler.EXTRA_OPEN_NEW_INCOGNITO_TAB, false)
                 || IntentUtils.safeHasExtra(intent, WebappConstants.EXTRA_SOURCE)
@@ -207,7 +156,6 @@ public class InstantAppsHandler {
         }
 
         Intent callbackIntent = new Intent(intent);
-        callbackIntent.putExtra(DO_NOT_LAUNCH_EXTRA, true);
         callbackIntent.putExtra(INSTANT_APP_START_TIME_EXTRA, startTime);
 
         return tryLaunchingInstantApp(context, intent, isCustomTabsIntent, callbackIntent);
@@ -309,12 +257,9 @@ public class InstantAppsHandler {
         Intent iaIntent = data.getIntent();
         if (data.getReferrer() != null) {
             iaIntent.putExtra(Intent.EXTRA_REFERRER, data.getReferrer());
-            iaIntent.putExtra(IS_REFERRER_TRUSTED_EXTRA, true);
         }
 
         Context appContext = ContextUtils.getApplicationContext();
-        iaIntent.putExtra(TRUSTED_REFERRER_PKG_EXTRA, appContext.getPackageName());
-        iaIntent.putExtra(IS_USER_CONFIRMED_LAUNCH_EXTRA, true);
 
         try {
             appContext.startActivity(iaIntent);
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/omaha/UpdateStatusProvider.java b/chrome/android/java/src/org/chromium/chrome/browser/omaha/UpdateStatusProvider.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/omaha/UpdateStatusProvider.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/omaha/UpdateStatusProvider.java
@@ -17,8 +17,6 @@ import androidx.annotation.IntDef;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
-import com.google.android.gms.common.GooglePlayServicesUtil;
-
 import org.chromium.base.BuildInfo;
 import org.chromium.base.Callback;
 import org.chromium.base.ContextUtils;
@@ -328,13 +326,7 @@ public class UpdateStatusProvider {
         }
 
         private boolean isGooglePlayStoreAvailable(Context context) {
-            try {
-                context.getPackageManager().getPackageInfo(
-                        GooglePlayServicesUtil.GOOGLE_PLAY_STORE_PACKAGE, 0);
-            } catch (PackageManager.NameNotFoundException e) {
-                return false;
-            }
-            return true;
+            return false;
         }
 
         private long getSize(StatFs statFs) {
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/privacy/settings/PrivacySettings.java b/chrome/android/java/src/org/chromium/chrome/browser/privacy/settings/PrivacySettings.java
--- a/chrome/android/java/src/org/chromium/chrome/browser/privacy/settings/PrivacySettings.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/privacy/settings/PrivacySettings.java
@@ -69,7 +69,6 @@ public class PrivacySettings
     private static final String PREF_PROXY_OPTIONS = "proxy";
     private static final String PREF_PRIVACY_REVIEW = "privacy_review";
     private static final String PREF_INCOGNITO_LOCK = "incognito_lock";
-    private static final String PREF_PHONE_AS_A_SECURITY_KEY = "phone_as_a_security_key";
 
     private static final String PREF_CLOSE_TABS_ON_EXIT = "close_tabs_on_exit";
 
@@ -174,10 +173,6 @@ public class PrivacySettings
             return true;
         });
 
-        Preference phoneAsASecurityKey = findPreference(PREF_PHONE_AS_A_SECURITY_KEY);
-        phoneAsASecurityKey.setVisible(
-                ChromeFeatureList.isEnabled(ChromeFeatureList.WEB_AUTH_PHONE_SUPPORT));
-
         updatePreferences();
     }
 
diff --git a/chrome/android/modules/chrome_feature_modules.gni b/chrome/android/modules/chrome_feature_modules.gni
--- a/chrome/android/modules/chrome_feature_modules.gni
+++ b/chrome/android/modules/chrome_feature_modules.gni
@@ -8,8 +8,6 @@ import(
 import("//chrome/android/features/dev_ui/dev_ui_module.gni")
 import("//chrome/android/features/tab_ui/tab_ui_module.gni")
 import("//chrome/android/modules/buildflags.gni")
-import(
-    "//chrome/android/modules/cablev2_authenticator/cablev2_authenticator_module.gni")
 import("//chrome/android/modules/extra_icu/extra_icu_module.gni")
 import("//chrome/android/modules/stack_unwinder/stack_unwinder_module.gni")
 import("//chrome/android/modules/test_dummy/test_dummy_module.gni")
@@ -66,7 +64,6 @@ if (!disable_autofill_assistant_dfm) {
 if (!disable_tab_ui_dfm) {
   monochrome_module_descs += [ tab_ui_module_desc ]
 }
-monochrome_module_descs += [ cablev2_authenticator_module_desc ]
 
 # Modules shipped in Trichrome (Android Q+).
 trichrome_module_descs = monochrome_module_descs
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -6781,8 +6781,6 @@ static_library("browser") {
       "offline_pages/offliner_helper.h",
       "offline_pages/offliner_user_data.cc",
       "offline_pages/offliner_user_data.h",
-      "offline_pages/prefetch/gcm_token.cc",
-      "offline_pages/prefetch/gcm_token.h",
       "offline_pages/prefetch/offline_metrics_collector_impl.cc",
       "offline_pages/prefetch/offline_metrics_collector_impl.h",
       "offline_pages/prefetch/offline_prefetch_download_client.cc",
diff --git a/chrome/browser/gsa/java/src/org/chromium/chrome/browser/gsa/GSAState.java b/chrome/browser/gsa/java/src/org/chromium/chrome/browser/gsa/GSAState.java
--- a/chrome/browser/gsa/java/src/org/chromium/chrome/browser/gsa/GSAState.java
+++ b/chrome/browser/gsa/java/src/org/chromium/chrome/browser/gsa/GSAState.java
@@ -82,7 +82,7 @@ public class GSAState {
     /**
      * Caches the result of a computation on whether GSA is available.
      */
-    private Boolean mGsaAvailable;
+    private Boolean mGsaAvailable = false;
 
     /**
      * The Google account email address being used by GSA according to the latest update we have
@@ -106,7 +106,7 @@ public class GSAState {
      * @return Whether the given package name is the package name for Google Search App.
      */
     public static boolean isGsaPackageName(String packageName) {
-        return SEARCH_INTENT_PACKAGE.equals(packageName);
+        return false;
     }
 
     /* Private constructor, since this is a singleton */
diff --git a/chrome/browser/language/android/BUILD.gn b/chrome/browser/language/android/BUILD.gn
--- a/chrome/browser/language/android/BUILD.gn
+++ b/chrome/browser/language/android/BUILD.gn
@@ -9,13 +9,11 @@ android_library("base_module_java") {
   sources = [
     "java/src/org/chromium/chrome/browser/language/AppLocaleUtils.java",
     "java/src/org/chromium/chrome/browser/language/GlobalAppLocaleController.java",
-    "java/src/org/chromium/chrome/browser/language/LanguageSplitInstaller.java",
   ]
   deps = [
     "//base:base_java",
     "//chrome/browser/preferences:java",
     "//components/language/android:java",
-    "//third_party/android_deps:com_google_android_play_core_java",
     "//third_party/androidx:androidx_annotation_annotation_java",
     "//ui/android:ui_no_recycler_view_java",
   ]
diff --git a/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/AppLanguagePromoDialog.java b/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/AppLanguagePromoDialog.java
--- a/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/AppLanguagePromoDialog.java
+++ b/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/AppLanguagePromoDialog.java
@@ -457,12 +457,6 @@ public class AppLanguagePromoDialog {
 
         mLoadingModal.set(ModalDialogProperties.CUSTOM_VIEW, customView);
 
-        // Only show the modal if the selected language is not installed.
-        if (!LanguageSplitInstaller.getInstance().isLanguageSplitInstalled(
-                    selectedLanguage.getCode())) {
-            mModalDialogManager.showDialog(mLoadingModal, ModalDialogManager.ModalDialogType.APP);
-        }
-
         boolean isSelectedCurrentUI = AppLocaleUtils.isAppLanguagePref(selectedLanguage.getCode());
         if (!isSelectedCurrentUI) {
             // Only record isTopLanguage if the app language has changed.
@@ -470,23 +464,6 @@ public class AppLanguagePromoDialog {
         }
         AndroidLanguageMetricsBridge.reportAppLanguagePromptLanguage(
                 selectedLanguage.isSystemDefault() ? "" : selectedLanguage.getCode());
-
-        // Create call back for after language split install completes.
-        AppLocaleUtils.setAppLanguagePref(selectedLanguage.getCode(), (success) -> {
-            if (success) {
-                if (!isSelectedCurrentUI) {
-                    // Only restart if the new language is different than the current UI.
-                    mRestartAction.restart();
-                }
-            } else {
-                // The loading language modal will always already be shown if a download fails.
-                CharSequence failedText = mActivity.getResources().getString(
-                        R.string.languages_split_failed, selectedLanguage.getDisplayName());
-                messageView.setText(failedText);
-                mLoadingModal.set(ModalDialogProperties.POSITIVE_BUTTON_TEXT,
-                        mActivity.getText(R.string.ok).toString());
-            }
-        });
     }
 
     /**
diff --git a/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/AppLanguagePreferenceDelegate.java b/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/AppLanguagePreferenceDelegate.java
--- a/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/AppLanguagePreferenceDelegate.java
+++ b/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/AppLanguagePreferenceDelegate.java
@@ -87,14 +87,6 @@ public class AppLanguagePreferenceDelegate {
 
         // Disable preference so a second downloaded cannot be started while one is in progress.
         mPreference.setEnabled(false);
-
-        AppLocaleUtils.setAppLanguagePref(code, (success) -> {
-            if (success) {
-                languageSplitDownloadComplete();
-            } else {
-                languageSplitDownloadFailed();
-            }
-        });
     }
 
     /**
diff --git a/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/LanguageSettings.java b/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/LanguageSettings.java
--- a/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/LanguageSettings.java
+++ b/chrome/browser/language/android/java/src/org/chromium/chrome/browser/language/settings/LanguageSettings.java
@@ -19,7 +19,6 @@ import org.chromium.base.Log;
 import org.chromium.chrome.browser.flags.ChromeFeatureList;
 import org.chromium.chrome.browser.language.AppLocaleUtils;
 import org.chromium.chrome.browser.language.GlobalAppLocaleController;
-import org.chromium.chrome.browser.language.LanguageSplitInstaller;
 import org.chromium.chrome.browser.language.R;
 import org.chromium.chrome.browser.preferences.Pref;
 import org.chromium.chrome.browser.preferences.PrefChangeRegistrar;
@@ -101,11 +100,6 @@ public class LanguageSettings extends PreferenceFragmentCompat
      * translate target language, and detailed translate preferences.
      */
     private void createDetailedPreferences(Bundle savedInstanceState, String rootKey) {
-        // Log currently installed language splits.
-        String installedLanguages =
-                TextUtils.join(",", LanguageSplitInstaller.getInstance().getInstalledLanguages());
-        Log.i(TAG, TextUtils.concat("Installed Languages: ", installedLanguages).toString());
-
         SettingsUtils.addPreferencesFromResource(this, R.xml.languages_detailed_preferences);
 
         setupAppLanguageSection();
diff --git a/chrome/browser/offline_pages/prefetch/prefetch_service_factory.cc b/chrome/browser/offline_pages/prefetch/prefetch_service_factory.cc
--- a/chrome/browser/offline_pages/prefetch/prefetch_service_factory.cc
+++ b/chrome/browser/offline_pages/prefetch/prefetch_service_factory.cc
@@ -18,7 +18,6 @@
 #include "chrome/browser/image_fetcher/image_fetcher_service_factory.h"
 #include "chrome/browser/net/system_network_context_manager.h"
 #include "chrome/browser/offline_pages/offline_page_model_factory.h"
-#include "chrome/browser/offline_pages/prefetch/gcm_token.h"
 #include "chrome/browser/offline_pages/prefetch/offline_metrics_collector_impl.h"
 #include "chrome/browser/offline_pages/prefetch/prefetch_background_task_handler_impl.h"
 #include "chrome/browser/profiles/profile.h"
@@ -68,21 +67,6 @@ void SwitchToFullBrowserImageFetcher(PrefetchServiceImpl* prefetch_service,
 }
 
 void OnProfileCreated(PrefetchServiceImpl* prefetch_service, Profile* profile) {
-  if (IsPrefetchingOfflinePagesEnabled()) {
-    // Trigger an update of the cached GCM token. This needs to be post tasked
-    // because otherwise leads to circular dependency between
-    // PrefetchServiceFactory and GCMProfileServiceFactory. See
-    // https://crbug.com/944952
-    // Update is not a priority so make sure it happens after the critical
-    // startup path.
-    content::GetUIThreadTaskRunner({base::TaskPriority::BEST_EFFORT})
-        ->PostTask(FROM_HERE,
-                   base::BindOnce(
-                       &GetGCMToken, profile, kPrefetchingOfflinePagesAppId,
-                       base::BindOnce(&PrefetchServiceImpl::GCMTokenReceived,
-                                      prefetch_service->GetWeakPtr())));
-  }
-
   SwitchToFullBrowserImageFetcher(prefetch_service, profile->GetProfileKey());
 }
 
diff --git a/chrome/browser/password_manager/android/BUILD.gn b/chrome/browser/password_manager/android/BUILD.gn
--- a/chrome/browser/password_manager/android/BUILD.gn
+++ b/chrome/browser/password_manager/android/BUILD.gn
@@ -63,7 +63,6 @@ android_library("java") {
     ":android_backend_java_enums",
     ":java_resources",
     ":settings_interface_java",
-    "$google_play_services_package:google_play_services_basement_java",
     "//base:base_java",
     "//chrome/browser/device_reauth/android:java",
     "//chrome/browser/flags:java",
@@ -143,7 +142,6 @@ junit_binary("password_manager_junit_tests") {
     ":backend_interface_public_impl_java",
     ":java",
     ":settings_interface_java",
-    "$google_play_services_package:google_play_services_basement_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:base_junit_test_support",
diff --git a/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordStoreAndroidBackendBridgeImpl.java b/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordStoreAndroidBackendBridgeImpl.java
--- a/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordStoreAndroidBackendBridgeImpl.java
+++ b/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordStoreAndroidBackendBridgeImpl.java
@@ -9,8 +9,6 @@ import static org.chromium.chrome.browser.password_manager.PasswordManagerHelper
 import android.accounts.Account;
 import android.app.PendingIntent;
 
-import com.google.android.gms.common.api.ApiException;
-import com.google.android.gms.common.api.ResolvableApiException;
 import com.google.common.base.Optional;
 
 import org.chromium.base.Log;
@@ -123,25 +121,6 @@ class PasswordStoreAndroidBackendBridgeImpl {
             error = ((PasswordStoreAndroidBackend.BackendException) exception).errorCode;
         }
 
-        if (exception instanceof ApiException) {
-            error = AndroidBackendErrorType.EXTERNAL_ERROR;
-            api_error_code = ((ApiException) exception).getStatusCode();
-
-            if (usesUnifiedPasswordManagerUI() && exception instanceof ResolvableApiException
-                    && api_error_code != ChromeSyncStatusCode.AUTH_ERROR_RESOLVABLE) {
-                // Backend error is user-recoverable, launch pending intent to allow the user to
-                // resolve it. Resolution for the authentication errors is not launched as
-                // user is requested to reauthenticate by Google services and Sync in Chrome.
-                ResolvableApiException resolvableApiException = (ResolvableApiException) exception;
-                PendingIntent pendingIntent = resolvableApiException.getResolution();
-                try {
-                    pendingIntent.send();
-                } catch (PendingIntent.CanceledException e) {
-                    Log.e(TAG, "Can not launch error resolution intent", e);
-                }
-            }
-        }
-
         PasswordStoreAndroidBackendBridgeImplJni.get().onError(
                 mNativeBackendBridge, jobId, error, api_error_code);
     }
diff --git a/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordSyncControllerDelegateBridgeImpl.java b/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordSyncControllerDelegateBridgeImpl.java
--- a/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordSyncControllerDelegateBridgeImpl.java
+++ b/chrome/browser/password_manager/android/java/src/org/chromium/chrome/browser/password_manager/PasswordSyncControllerDelegateBridgeImpl.java
@@ -4,8 +4,6 @@
 
 package org.chromium.chrome.browser.password_manager;
 
-import com.google.android.gms.common.api.ApiException;
-
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.NativeMethods;
 import org.chromium.chrome.browser.sync.SyncService;
@@ -76,11 +74,6 @@ class PasswordSyncControllerDelegateBridgeImpl {
             error = ((PasswordStoreAndroidBackend.BackendException) exception).errorCode;
         }
 
-        if (exception instanceof ApiException) {
-            error = AndroidBackendErrorType.EXTERNAL_ERROR;
-            apiErrorCode = ((ApiException) exception).getStatusCode();
-        }
-
         PasswordSyncControllerDelegateBridgeImplJni.get().onCredentialManagerError(
                 mNativeDelegateBridgeImpl, error, apiErrorCode);
     }
diff --git a/chrome/browser/push_messaging/push_messaging_service_factory.cc b/chrome/browser/push_messaging/push_messaging_service_factory.cc
--- a/chrome/browser/push_messaging/push_messaging_service_factory.cc
+++ b/chrome/browser/push_messaging/push_messaging_service_factory.cc
@@ -28,13 +28,7 @@
 // static
 PushMessagingServiceImpl* PushMessagingServiceFactory::GetForProfile(
     content::BrowserContext* context) {
-  // The Push API is not currently supported in incognito mode.
-  // See https://crbug.com/401439.
-  if (context->IsOffTheRecord())
-    return nullptr;
-
-  return static_cast<PushMessagingServiceImpl*>(
-      GetInstance()->GetServiceForBrowserContext(context, true));
+  return nullptr;
 }
 
 // static
diff --git a/chrome/browser/ui/BUILD.gn b/chrome/browser/ui/BUILD.gn
--- a/chrome/browser/ui/BUILD.gn
+++ b/chrome/browser/ui/BUILD.gn
@@ -248,8 +248,6 @@ static_library("ui") {
     "webui/flags/flags_ui.h",
     "webui/flags/flags_ui_handler.cc",
     "webui/flags/flags_ui_handler.h",
-    "webui/gcm_internals_ui.cc",
-    "webui/gcm_internals_ui.h",
     "webui/internals/internals_ui.cc",
     "webui/internals/internals_ui.h",
     "webui/interstitials/interstitial_ui.cc",
@@ -479,7 +477,6 @@ static_library("ui") {
     "//components/feedback/content",
     "//components/find_in_page",
     "//components/flags_ui",
-    "//components/gcm_driver",
     "//components/google/core/common",
     "//components/heap_profiling/multi_process",
     "//components/history/content/browser",
diff --git a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
--- a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
+++ b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
@@ -40,7 +40,6 @@
 #include "chrome/browser/ui/webui/download_internals/download_internals_ui.h"
 #include "chrome/browser/ui/webui/engagement/site_engagement_ui.h"
 #include "chrome/browser/ui/webui/flags/flags_ui.h"
-#include "chrome/browser/ui/webui/gcm_internals_ui.h"
 #include "chrome/browser/ui/webui/internals/internals_ui.h"
 #include "chrome/browser/ui/webui/interstitials/interstitial_ui.h"
 #include "chrome/browser/ui/webui/invalidations/invalidations_ui.h"
@@ -746,8 +745,6 @@ WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
     return &NewWebUI<FlagsDeprecatedUI>;
   if (url.host_piece() == chrome::kChromeUIFlagsHost)
     return &NewWebUI<FlagsUI>;
-  if (url.host_piece() == chrome::kChromeUIGCMInternalsHost)
-    return &NewWebUI<GCMInternalsUI>;
   if (url.host_piece() == chrome::kChromeUIInternalsHost)
     return &NewWebUI<InternalsUI>;
   if (url.host_piece() == chrome::kChromeUIInterstitialHost)
diff --git a/chrome/test/android/BUILD.gn b/chrome/test/android/BUILD.gn
--- a/chrome/test/android/BUILD.gn
+++ b/chrome/test/android/BUILD.gn
@@ -305,8 +305,6 @@ android_library("chrome_java_test_support") {
   ]
 
   deps = [
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//chrome/android:base_module_java",
diff --git a/components/background_task_scheduler/BUILD.gn b/components/background_task_scheduler/BUILD.gn
--- a/components/background_task_scheduler/BUILD.gn
+++ b/components/background_task_scheduler/BUILD.gn
@@ -121,11 +121,6 @@ if (is_android) {
 
     deps = [
       ":background_task_scheduler_task_ids_java",
-      "$google_play_services_package:google_play_services_auth_base_java",
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_gcm_java",
-      "$google_play_services_package:google_play_services_tasks_java",
       "internal:internal_java",
       "internal:proto_java",
       "//base:base_java",
diff --git a/components/background_task_scheduler/internal/BUILD.gn b/components/background_task_scheduler/internal/BUILD.gn
--- a/components/background_task_scheduler/internal/BUILD.gn
+++ b/components/background_task_scheduler/internal/BUILD.gn
@@ -11,12 +11,10 @@ if (is_android) {
   android_library("internal_java") {
     sources = [
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskBroadcastReceiver.java",
-      "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskGcmTaskService.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskJobService.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerAlarmManager.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerDelegate.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerFactoryInternal.java",
-      "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerGcmNetworkManager.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerImpl.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerJobService.java",
       "android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerPrefs.java",
@@ -27,10 +25,6 @@ if (is_android) {
 
     deps = [
       ":proto_java",
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_gcm_java",
-      "$google_play_services_package:google_play_services_tasks_java",
       "//base:base_java",
       "//components/background_task_scheduler:background_task_scheduler_task_ids_java",
       "//components/background_task_scheduler:public_java",
@@ -98,10 +92,6 @@ if (is_android) {
 
     deps = [
       ":internal_java",
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_gcm_java",
-      "$google_play_services_package:google_play_services_tasks_java",
       "//base:base_java",
       "//base:base_java_test_support",
       "//components/background_task_scheduler:background_task_scheduler_task_ids_java",
diff --git a/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskGcmTaskService.java b/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskGcmTaskService.java
deleted file mode 100644
--- a/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskGcmTaskService.java
+++ /dev/null
@@ -1,160 +0,0 @@
-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.components.background_task_scheduler.internal;
-
-import android.os.Build;
-
-import androidx.annotation.VisibleForTesting;
-
-import com.google.android.gms.gcm.GcmNetworkManager;
-import com.google.android.gms.gcm.GcmTaskService;
-import com.google.android.gms.gcm.TaskParams;
-
-import org.chromium.base.ContextUtils;
-import org.chromium.base.Log;
-import org.chromium.base.ThreadUtils;
-import org.chromium.components.background_task_scheduler.BackgroundTask;
-import org.chromium.components.background_task_scheduler.TaskParameters;
-
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-/** Delegates calls out to various tasks that need to run in the background. */
-public class BackgroundTaskGcmTaskService extends GcmTaskService {
-    private static final String TAG = "BkgrdTaskGcmTS";
-
-    private BackgroundTaskSchedulerGcmNetworkManager.Clock mClock = System::currentTimeMillis;
-
-    @VisibleForTesting
-    void setClockForTesting(BackgroundTaskSchedulerGcmNetworkManager.Clock clock) {
-        mClock = clock;
-    }
-
-    /** Class that waits for the processing to be done. */
-    private static class Waiter {
-        // Wakelock is only held for 3 minutes by default for GcmTaskService.
-        private static final long MAX_TIMEOUT_SECONDS = 179;
-        private final CountDownLatch mLatch;
-        private long mWaiterTimeoutSeconds;
-        private boolean mIsRescheduleNeeded;
-        private boolean mHasTaskTimedOut;
-
-        public Waiter(long waiterTimeoutSeconds) {
-            mLatch = new CountDownLatch(1);
-            mWaiterTimeoutSeconds = Math.min(waiterTimeoutSeconds, MAX_TIMEOUT_SECONDS);
-        }
-
-        /** Start waiting for the processing to finish. */
-        public void startWaiting() {
-            try {
-                mHasTaskTimedOut = !mLatch.await(mWaiterTimeoutSeconds, TimeUnit.SECONDS);
-            } catch (InterruptedException e) {
-                Log.d(TAG, "Waiter interrupted while waiting.");
-            }
-        }
-
-        /** Called to finish waiting. */
-        public void onWaitDone(boolean needsRescheduling) {
-            mIsRescheduleNeeded = needsRescheduling;
-            mLatch.countDown();
-        }
-
-        /** @return Whether last task timed out. */
-        public boolean hasTaskTimedOut() {
-            return mHasTaskTimedOut;
-        }
-
-        /** @return Whether task needs to be rescheduled. */
-        public boolean isRescheduleNeeded() {
-            return mIsRescheduleNeeded;
-        }
-    }
-
-    private static class TaskFinishedCallbackGcmTaskService
-            implements BackgroundTask.TaskFinishedCallback {
-        private final Waiter mWaiter;
-
-        public TaskFinishedCallbackGcmTaskService(Waiter waiter) {
-            mWaiter = waiter;
-        }
-
-        @Override
-        public void taskFinished(final boolean needsReschedule) {
-            ThreadUtils.runOnUiThreadBlocking(new Runnable() {
-                @Override
-                public void run() {
-                    mWaiter.onWaitDone(needsReschedule);
-                }
-            });
-        }
-    }
-
-    @Override
-    public int onRunTask(TaskParams params) {
-        final TaskParameters taskParams =
-                BackgroundTaskSchedulerGcmNetworkManager.getTaskParametersFromTaskParams(params);
-
-        final BackgroundTask backgroundTask =
-                BackgroundTaskSchedulerFactoryInternal.getBackgroundTaskFromTaskId(
-                        taskParams.getTaskId());
-        if (backgroundTask == null) {
-            Log.w(TAG, "Failed to start task. Could not instantiate BackgroundTask class.");
-            // Cancel task if the BackgroundTask class is not found anymore. We assume this means
-            // that the task has been deprecated.
-            BackgroundTaskSchedulerFactoryInternal.getScheduler().cancel(
-                    ContextUtils.getApplicationContext(), taskParams.getTaskId());
-            return GcmNetworkManager.RESULT_FAILURE;
-        }
-
-        if (BackgroundTaskSchedulerGcmNetworkManager.didTaskExpire(
-                    params, mClock.currentTimeMillis())) {
-            BackgroundTaskSchedulerUma.getInstance().reportTaskExpired(taskParams.getTaskId());
-            return GcmNetworkManager.RESULT_FAILURE;
-        }
-
-        final Waiter waiter = new Waiter(Waiter.MAX_TIMEOUT_SECONDS);
-
-        final AtomicBoolean taskNeedsBackgroundProcessing = new AtomicBoolean();
-        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
-            @Override
-            public void run() {
-                BackgroundTaskSchedulerUma.getInstance().reportTaskStarted(taskParams.getTaskId());
-                taskNeedsBackgroundProcessing.set(
-                        backgroundTask.onStartTask(ContextUtils.getApplicationContext(), taskParams,
-                                new TaskFinishedCallbackGcmTaskService(waiter)));
-            }
-        });
-
-        if (!taskNeedsBackgroundProcessing.get()) return GcmNetworkManager.RESULT_SUCCESS;
-
-        waiter.startWaiting();
-
-        if (waiter.isRescheduleNeeded()) return GcmNetworkManager.RESULT_RESCHEDULE;
-        if (!waiter.hasTaskTimedOut()) return GcmNetworkManager.RESULT_SUCCESS;
-
-        final AtomicBoolean taskNeedsRescheduling = new AtomicBoolean();
-        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
-            @Override
-            public void run() {
-                BackgroundTaskSchedulerUma.getInstance().reportTaskStopped(taskParams.getTaskId());
-                taskNeedsRescheduling.set(backgroundTask.onStopTask(
-                        ContextUtils.getApplicationContext(), taskParams));
-            }
-        });
-
-        if (taskNeedsRescheduling.get()) return GcmNetworkManager.RESULT_RESCHEDULE;
-
-        return GcmNetworkManager.RESULT_SUCCESS;
-    }
-
-    @Override
-    public void onInitializeTasks() {
-        // Ignore the event on OSs supporting JobScheduler.
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) return;
-        BackgroundTaskSchedulerFactoryInternal.getScheduler().reschedule(
-                ContextUtils.getApplicationContext());
-    }
-}
diff --git a/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerFactoryInternal.java b/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerFactoryInternal.java
--- a/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerFactoryInternal.java
+++ b/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerFactoryInternal.java
@@ -21,11 +21,7 @@ public final class BackgroundTaskSchedulerFactoryInternal {
     private static BackgroundTaskFactory sBackgroundTaskFactory;
 
     static BackgroundTaskSchedulerDelegate getSchedulerDelegateForSdk(int sdkInt) {
-        if (sdkInt >= Build.VERSION_CODES.M) {
-            return new BackgroundTaskSchedulerJobService();
-        } else {
-            return new BackgroundTaskSchedulerGcmNetworkManager();
-        }
+        return new BackgroundTaskSchedulerJobService();
     }
 
     /**
diff --git a/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerGcmNetworkManager.java b/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerGcmNetworkManager.java
deleted file mode 100644
--- a/components/background_task_scheduler/internal/android/java/src/org/chromium/components/background_task_scheduler/internal/BackgroundTaskSchedulerGcmNetworkManager.java
+++ /dev/null
@@ -1,257 +0,0 @@
-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.components.background_task_scheduler.internal;
-
-import android.content.Context;
-import android.os.Bundle;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.VisibleForTesting;
-
-import com.google.android.gms.gcm.GcmNetworkManager;
-import com.google.android.gms.gcm.OneoffTask;
-import com.google.android.gms.gcm.PeriodicTask;
-import com.google.android.gms.gcm.Task;
-import com.google.android.gms.gcm.TaskParams;
-
-import org.chromium.base.Log;
-import org.chromium.base.ThreadUtils;
-import org.chromium.components.background_task_scheduler.TaskInfo;
-import org.chromium.components.background_task_scheduler.TaskParameters;
-import org.chromium.gms.ChromiumPlayServicesAvailability;
-
-import java.util.concurrent.TimeUnit;
-
-/**
- * An implementation of {@link BackgroundTaskSchedulerDelegate} that uses the Play Services
- * {@link GcmNetworkManager} to schedule jobs.
- */
-class BackgroundTaskSchedulerGcmNetworkManager implements BackgroundTaskSchedulerDelegate {
-    private static final String TAG = "BkgrdTaskSchedGcmNM";
-
-    /** Delta time for expiration checks, after the end time. */
-    static final long DEADLINE_DELTA_MS = 1000;
-
-    /** Clock to use so we can mock time in tests. */
-    public interface Clock { long currentTimeMillis(); }
-
-    private static Clock sClock = System::currentTimeMillis;
-
-    @VisibleForTesting
-    static void setClockForTesting(Clock clock) {
-        sClock = clock;
-    }
-
-    /**
-     * Checks if a task expired, based on the current time of the service.
-     *
-     * @param taskParams parameters sent to the service, which contain the scheduling information
-     * regarding expiration.
-     * @param currentTimeMs the current time of the service.
-     * @return true if the task expired and false otherwise.
-     */
-    static boolean didTaskExpire(TaskParams taskParams, long currentTimeMs) {
-        Bundle extras = taskParams.getExtras();
-        if (extras == null || !extras.containsKey(BACKGROUND_TASK_SCHEDULE_TIME_KEY)) {
-            return false;
-        }
-
-        long scheduleTimeMs = extras.getLong(BACKGROUND_TASK_SCHEDULE_TIME_KEY);
-        if (extras.containsKey(BACKGROUND_TASK_END_TIME_KEY)) {
-            long endTimeMs =
-                    extras.getLong(BackgroundTaskSchedulerDelegate.BACKGROUND_TASK_END_TIME_KEY);
-            return TaskInfo.OneOffInfo.getExpirationStatus(
-                    scheduleTimeMs, endTimeMs, currentTimeMs);
-        } else {
-            long intervalTimeMs = extras.getLong(BACKGROUND_TASK_INTERVAL_TIME_KEY);
-
-            // If flex is never set, it is given a default value of 10% of the period time, as
-            // per the GcmNetworkManager behaviour. This default value is set in
-            // https://developers.google.com/android/reference/com/google/android/gms/gcm/PeriodicTask.
-            double defaultFlexAsFractionOfInterval = 0.1f;
-
-            long flexTimeMs = extras.getLong(BACKGROUND_TASK_FLEX_TIME_KEY,
-                    /*defaultValue=*/(long) (defaultFlexAsFractionOfInterval * intervalTimeMs));
-
-            return TaskInfo.PeriodicInfo.getExpirationStatus(
-                    scheduleTimeMs, intervalTimeMs, flexTimeMs, currentTimeMs);
-        }
-    }
-
-    /**
-     * Retrieves the {@link TaskParameters} from the {@link TaskParams}, which are passed as
-     * one of the keys. Only values valid for {@link android.os.BaseBundle} are supported, and other
-     * values are stripped at the time when the task is scheduled.
-     *
-     * @param taskParams the {@link TaskParams} to extract the {@link TaskParameters} from.
-     * @return the {@link TaskParameters} for the current job.
-     */
-    static TaskParameters getTaskParametersFromTaskParams(@NonNull TaskParams taskParams) {
-        int taskId;
-        try {
-            taskId = Integer.parseInt(taskParams.getTag());
-        } catch (NumberFormatException e) {
-            Log.e(TAG, "Cound not parse task ID from task tag: " + taskParams.getTag());
-            return null;
-        }
-
-        TaskParameters.Builder builder = TaskParameters.create(taskId);
-
-        Bundle extras = taskParams.getExtras();
-        Bundle taskExtras = extras.getBundle(BACKGROUND_TASK_EXTRAS_KEY);
-        builder.addExtras(taskExtras);
-
-        return builder.build();
-    }
-
-    @VisibleForTesting
-    static Task createTaskFromTaskInfo(@NonNull TaskInfo taskInfo) {
-        Bundle taskExtras = new Bundle();
-        taskExtras.putBundle(BACKGROUND_TASK_EXTRAS_KEY, taskInfo.getExtras());
-
-        TaskBuilderVisitor taskBuilderVisitor = new TaskBuilderVisitor(taskExtras);
-        taskInfo.getTimingInfo().accept(taskBuilderVisitor);
-        Task.Builder builder = taskBuilderVisitor.getBuilder();
-
-        builder.setPersisted(taskInfo.isPersisted())
-                .setRequiredNetwork(getGcmNetworkManagerNetworkTypeFromTypeFromTaskNetworkType(
-                        taskInfo.getRequiredNetworkType()))
-                .setRequiresCharging(taskInfo.requiresCharging())
-                .setService(BackgroundTaskGcmTaskService.class)
-                .setTag(taskIdToTaskTag(taskInfo.getTaskId()))
-                .setUpdateCurrent(taskInfo.shouldUpdateCurrent());
-
-        return builder.build();
-    }
-
-    private static class TaskBuilderVisitor implements TaskInfo.TimingInfoVisitor {
-        private Task.Builder mBuilder;
-        private final Bundle mTaskExtras;
-
-        TaskBuilderVisitor(Bundle taskExtras) {
-            mTaskExtras = taskExtras;
-        }
-
-        // Only valid after a TimingInfo object was visited.
-        Task.Builder getBuilder() {
-            return mBuilder;
-        }
-
-        @Override
-        public void visit(TaskInfo.OneOffInfo oneOffInfo) {
-            if (oneOffInfo.expiresAfterWindowEndTime()) {
-                mTaskExtras.putLong(BACKGROUND_TASK_SCHEDULE_TIME_KEY, sClock.currentTimeMillis());
-                mTaskExtras.putLong(BACKGROUND_TASK_END_TIME_KEY, oneOffInfo.getWindowEndTimeMs());
-            }
-
-            OneoffTask.Builder builder = new OneoffTask.Builder();
-            long windowStartSeconds = oneOffInfo.hasWindowStartTimeConstraint()
-                    ? TimeUnit.MILLISECONDS.toSeconds(oneOffInfo.getWindowStartTimeMs())
-                    : 0;
-            long windowEndTimeMs = oneOffInfo.getWindowEndTimeMs();
-            if (oneOffInfo.expiresAfterWindowEndTime()) {
-                windowEndTimeMs += DEADLINE_DELTA_MS;
-            }
-            builder.setExecutionWindow(
-                    windowStartSeconds, TimeUnit.MILLISECONDS.toSeconds(windowEndTimeMs));
-            builder.setExtras(mTaskExtras);
-            mBuilder = builder;
-        }
-
-        @Override
-        public void visit(TaskInfo.PeriodicInfo periodicInfo) {
-            if (periodicInfo.expiresAfterWindowEndTime()) {
-                mTaskExtras.putLong(BACKGROUND_TASK_SCHEDULE_TIME_KEY, sClock.currentTimeMillis());
-                mTaskExtras.putLong(
-                        BACKGROUND_TASK_INTERVAL_TIME_KEY, periodicInfo.getIntervalMs());
-                if (periodicInfo.hasFlex()) {
-                    mTaskExtras.putLong(BACKGROUND_TASK_FLEX_TIME_KEY, periodicInfo.getFlexMs());
-                }
-            }
-
-            PeriodicTask.Builder builder = new PeriodicTask.Builder();
-            builder.setPeriod(TimeUnit.MILLISECONDS.toSeconds(periodicInfo.getIntervalMs()));
-            if (periodicInfo.hasFlex()) {
-                builder.setFlex(TimeUnit.MILLISECONDS.toSeconds(periodicInfo.getFlexMs()));
-            }
-            builder.setExtras(mTaskExtras);
-            mBuilder = builder;
-        }
-
-        @Override
-        public void visit(TaskInfo.ExactInfo exactInfo) {
-            throw new RuntimeException("Exact tasks should not be scheduled with "
-                    + "GcmNetworkManager.");
-        }
-    }
-
-    private static int getGcmNetworkManagerNetworkTypeFromTypeFromTaskNetworkType(
-            @TaskInfo.NetworkType int networkType) {
-        switch (networkType) {
-            // This is correct: GcmNM ANY means no network is guaranteed.
-            case TaskInfo.NetworkType.NONE:
-                return Task.NETWORK_STATE_ANY;
-            case TaskInfo.NetworkType.ANY:
-                return Task.NETWORK_STATE_CONNECTED;
-            case TaskInfo.NetworkType.UNMETERED:
-                return Task.NETWORK_STATE_UNMETERED;
-            default:
-                assert false;
-        }
-        return Task.NETWORK_STATE_ANY;
-    }
-
-    @Override
-    public boolean schedule(Context context, @NonNull TaskInfo taskInfo) {
-        ThreadUtils.assertOnUiThread();
-
-        GcmNetworkManager gcmNetworkManager = getGcmNetworkManager(context);
-        if (gcmNetworkManager == null) {
-            Log.e(TAG, "GcmNetworkManager is not available.");
-            return false;
-        }
-
-        try {
-            Task task = createTaskFromTaskInfo(taskInfo);
-            gcmNetworkManager.schedule(task);
-        } catch (IllegalArgumentException e) {
-            String gcmErrorMessage = e.getMessage() == null ? "null." : e.getMessage();
-            Log.e(TAG,
-                    "GcmNetworkManager failed to schedule task, gcm message: " + gcmErrorMessage);
-            return false;
-        }
-
-        return true;
-    }
-
-    @Override
-    public void cancel(Context context, int taskId) {
-        ThreadUtils.assertOnUiThread();
-
-        GcmNetworkManager gcmNetworkManager = getGcmNetworkManager(context);
-        if (gcmNetworkManager == null) {
-            Log.e(TAG, "GcmNetworkManager is not available.");
-            return;
-        }
-
-        try {
-            gcmNetworkManager.cancelTask(
-                    taskIdToTaskTag(taskId), BackgroundTaskGcmTaskService.class);
-        } catch (IllegalArgumentException e) {
-            Log.e(TAG, "GcmNetworkManager failed to cancel task.");
-        }
-    }
-
-    private GcmNetworkManager getGcmNetworkManager(Context context) {
-        if (ChromiumPlayServicesAvailability.isGooglePlayServicesAvailable(context)) {
-            return GcmNetworkManager.getInstance(context);
-        }
-        return null;
-    }
-
-    private static String taskIdToTaskTag(int taskId) {
-        return Integer.toString(taskId);
-    }
-}
diff --git a/components/component_updater/android/java/src/org/chromium/components/component_updater/UpdateScheduler.java b/components/component_updater/android/java/src/org/chromium/components/component_updater/UpdateScheduler.java
--- a/components/component_updater/android/java/src/org/chromium/components/component_updater/UpdateScheduler.java
+++ b/components/component_updater/android/java/src/org/chromium/components/component_updater/UpdateScheduler.java
@@ -14,7 +14,6 @@ import org.chromium.components.background_task_scheduler.BackgroundTask.TaskFini
 import org.chromium.components.background_task_scheduler.BackgroundTaskSchedulerFactory;
 import org.chromium.components.background_task_scheduler.TaskIds;
 import org.chromium.components.background_task_scheduler.TaskInfo;
-import org.chromium.gms.ChromiumPlayServicesAvailability;
 
 /** Java-side implementation of the component update scheduler using the BackgroundTaskScheduler. */
 @JNINamespace("component_updater")
diff --git a/components/externalauth/android/BUILD.gn b/components/externalauth/android/BUILD.gn
--- a/components/externalauth/android/BUILD.gn
+++ b/components/externalauth/android/BUILD.gn
@@ -27,8 +27,6 @@ android_library("google_delegate_public_impl_java") {
 android_library("java") {
   deps = [
     ":google_delegate_java",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
     "//base:base_java",
     "//components/embedder_support/android:util_java",
     "//content/public/android:content_java",
@@ -49,7 +47,6 @@ android_library("junit") {
 
   deps = [
     ":java",
-    "$google_play_services_package:google_play_services_basement_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:base_junit_test_support",
diff --git a/components/externalauth/android/java/src/org/chromium/components/externalauth/ExternalAuthUtils.java b/components/externalauth/android/java/src/org/chromium/components/externalauth/ExternalAuthUtils.java
--- a/components/externalauth/android/java/src/org/chromium/components/externalauth/ExternalAuthUtils.java
+++ b/components/externalauth/android/java/src/org/chromium/components/externalauth/ExternalAuthUtils.java
@@ -15,16 +15,12 @@ import android.text.TextUtils;
 import androidx.annotation.VisibleForTesting;
 import androidx.annotation.WorkerThread;
 
-import com.google.android.gms.common.ConnectionResult;
-import com.google.android.gms.common.GoogleApiAvailability;
-
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.StrictModeContext;
 import org.chromium.base.task.PostTask;
 import org.chromium.components.embedder_support.util.Origin;
 import org.chromium.content_public.browser.UiThreadTaskTraits;
-import org.chromium.gms.ChromiumPlayServicesAvailability;
 
 /**
  * Utility class for external authentication tools.
@@ -170,9 +166,7 @@ public class ExternalAuthUtils {
      *         when it is updating.
      */
     public boolean isGooglePlayServicesMissing(final Context context) {
-        final int resultCode = checkGooglePlayServicesAvailable(context);
-        return (resultCode == ConnectionResult.SERVICE_MISSING
-                || resultCode == ConnectionResult.SERVICE_INVALID);
+        return true;
     }
 
     /**
@@ -189,7 +183,6 @@ public class ExternalAuthUtils {
     public boolean canUseGooglePlayServices(final UserRecoverableErrorHandler errorHandler) {
         Context context = ContextUtils.getApplicationContext();
         final int resultCode = checkGooglePlayServicesAvailable(context);
-        if (resultCode == ConnectionResult.SUCCESS) return true;
         // resultCode is some kind of error.
         Log.v(TAG, "Unable to use Google Play Services: %s", describeError(resultCode));
         if (isUserRecoverableError(resultCode)) {
@@ -260,10 +253,7 @@ public class ExternalAuthUtils {
      * @return The code produced by calling the external code
      */
     protected int checkGooglePlayServicesAvailable(final Context context) {
-        // TODO(crbug.com/577190): Temporarily allowing disk access until more permanent fix is in.
-        try (StrictModeContext ignored = StrictModeContext.allowDiskWrites()) {
-            return ChromiumPlayServicesAvailability.getGooglePlayServicesConnectionResult(context);
-        }
+        return 1; /*SERVICE_MISSING*/
     }
 
     /**
@@ -274,7 +264,7 @@ public class ExternalAuthUtils {
      * @return true If the code represents a user-recoverable error
      */
     protected boolean isUserRecoverableError(final int errorCode) {
-        return GoogleApiAvailability.getInstance().isUserResolvableError(errorCode);
+        return false;
     }
 
     /**
@@ -284,7 +274,7 @@ public class ExternalAuthUtils {
      * @return a textual description of the error code
      */
     protected String describeError(final int errorCode) {
-        return GoogleApiAvailability.getInstance().getErrorString(errorCode);
+        return "";
     }
 
     /**
diff --git a/components/externalauth/android/java/src/org/chromium/components/externalauth/UserRecoverableErrorHandler.java b/components/externalauth/android/java/src/org/chromium/components/externalauth/UserRecoverableErrorHandler.java
--- a/components/externalauth/android/java/src/org/chromium/components/externalauth/UserRecoverableErrorHandler.java
+++ b/components/externalauth/android/java/src/org/chromium/components/externalauth/UserRecoverableErrorHandler.java
@@ -9,8 +9,6 @@ import android.app.Dialog;
 import android.content.Context;
 import android.content.DialogInterface;
 
-import com.google.android.gms.common.GoogleApiAvailability;
-
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.metrics.RecordUserAction;
 
@@ -89,7 +87,6 @@ public abstract class UserRecoverableErrorHandler {
             if (!sNotificationShown.getAndSet(true)) {
                 return;
             }
-            GoogleApiAvailability.getInstance().showErrorNotification(context, errorCode);
         }
     }
 
@@ -182,11 +179,7 @@ public abstract class UserRecoverableErrorHandler {
                 cancelDialog();
             }
             if (mDialog == null) {
-                mDialog = GoogleApiAvailability.getInstance().getErrorDialog(
-                        mActivity, errorCode, NO_RESPONSE_REQUIRED);
                 mErrorCode = errorCode;
-
-                DialogUserActionRecorder.createAndAttachToDialog(mDialog);
             }
             // This can happen if |errorCode| is ConnectionResult.SERVICE_INVALID.
             if (mDialog != null && !mDialog.isShowing()) {
diff --git a/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java b/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
--- a/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
+++ b/components/gcm_driver/android/java/src/org/chromium/components/gcm_driver/GoogleCloudMessagingV2.java
@@ -129,6 +129,8 @@ public class GoogleCloudMessagingV2 implements GoogleCloudMessagingSubscriber {
     }
 
     private Intent registerRpc(Bundle data) throws IOException {
+        if ((true))
+            throw new IOException("Google Play Services missing");
         if (Looper.getMainLooper() == Looper.myLooper()) {
             throw new IOException(ERROR_MAIN_THREAD);
         }
diff --git a/components/gcm_driver/gcm_client_impl.cc b/components/gcm_driver/gcm_client_impl.cc
--- a/components/gcm_driver/gcm_client_impl.cc
+++ b/components/gcm_driver/gcm_client_impl.cc
@@ -465,6 +465,7 @@ void GCMClientImpl::StartGCM() {
 
 void GCMClientImpl::InitializeMCSClient() {
   DCHECK(network_connection_tracker_);
+  return;
   std::vector<GURL> endpoints;
   endpoints.push_back(gservices_settings_.GetMCSMainEndpoint());
   GURL fallback_endpoint = gservices_settings_.GetMCSFallbackEndpoint();
@@ -659,6 +660,7 @@ void GCMClientImpl::AddHeartbeatInterval(const std::string& scope,
                                          int interval_ms) {
   DCHECK(io_task_runner_->RunsTasksInCurrentSequence());
   DCHECK(mcs_client_);
+  return;
   mcs_client_->AddHeartbeatInterval(scope, interval_ms);
 }
 
@@ -670,6 +672,7 @@ void GCMClientImpl::RemoveHeartbeatInterval(const std::string& scope) {
 
 void GCMClientImpl::StartCheckin() {
   DCHECK(io_task_runner_->RunsTasksInCurrentSequence());
+  return;
 
   // Make sure no checkin is in progress.
   if (checkin_request_)
@@ -747,6 +750,7 @@ void GCMClientImpl::SetGServicesSettingsCallback(bool success) {
 
 void GCMClientImpl::SchedulePeriodicCheckin() {
   DCHECK(io_task_runner_->RunsTasksInCurrentSequence());
+  return;
 
   // Make sure no checkin is in progress.
   if (checkin_request_.get() || !device_checkin_info_.accounts_set)
diff --git a/components/gcm_driver/instance_id/android/BUILD.gn b/components/gcm_driver/instance_id/android/BUILD.gn
--- a/components/gcm_driver/instance_id/android/BUILD.gn
+++ b/components/gcm_driver/instance_id/android/BUILD.gn
@@ -15,7 +15,6 @@ generate_jni("test_support_jni_headers") {
 
 android_library("instance_id_driver_java") {
   deps = [
-    "$google_play_services_package:google_play_services_iid_java",
     "//base:base_java",
     "//components/gcm_driver/android:gcm_driver_java",
     "//third_party/androidx:androidx_annotation_annotation_java",
@@ -27,14 +26,12 @@ android_library("instance_id_driver_java") {
 
   sources = [
     "java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDBridge.java",
-    "java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDWithSubtype.java",
   ]
 }
 
 android_library("instance_id_driver_test_support_java") {
   deps = [
     ":instance_id_driver_java",
-    "$google_play_services_package:google_play_services_iid_java",
     "//base:base_java",
   ]
 
diff --git a/components/gcm_driver/instance_id/android/java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDBridge.java b/components/gcm_driver/instance_id/android/java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDBridge.java
--- a/components/gcm_driver/instance_id/android/java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDBridge.java
+++ b/components/gcm_driver/instance_id/android/java/src/org/chromium/components/gcm_driver/instance_id/InstanceIDBridge.java
@@ -27,7 +27,6 @@ public class InstanceIDBridge {
      * Underlying InstanceIDWithSubtype. May be shared by multiple InstanceIDBridges. Must be
      * initialized on a background thread.
      */
-    private InstanceIDWithSubtype mInstanceID;
 
     private static boolean sBlockOnAsyncTasksForTesting;
 
@@ -72,7 +71,7 @@ public class InstanceIDBridge {
         new BridgeAsyncTask<String>() {
             @Override
             protected String doBackgroundWork() {
-                return mInstanceID.getId();
+                return "";
             }
             @Override
             protected void sendResultToNative(String id) {
@@ -88,7 +87,7 @@ public class InstanceIDBridge {
         new BridgeAsyncTask<Long>() {
             @Override
             protected Long doBackgroundWork() {
-                return mInstanceID.getCreationTime();
+                return 0L;
             }
             @Override
             protected void sendResultToNative(Long creationTime) {
@@ -110,21 +109,7 @@ public class InstanceIDBridge {
         new BridgeAsyncTask<String>() {
             @Override
             protected String doBackgroundWork() {
-                try {
-                    // TODO(crbug.com/1247170): Migrate stored LazySubscriptionsManager data to
-                    // SubscriptionFlagManager.
-                    LazySubscriptionsManager.storeLazinessInformation(
-                            LazySubscriptionsManager.buildSubscriptionUniqueId(
-                                    mSubtype, authorizedEntity),
-                            (flags & InstanceIDFlags.IS_LAZY) == InstanceIDFlags.IS_LAZY);
-                    SubscriptionFlagManager.setFlags(
-                            SubscriptionFlagManager.buildSubscriptionUniqueId(
-                                    mSubtype, authorizedEntity),
-                            flags);
-                    return mInstanceID.getToken(authorizedEntity, scope);
-                } catch (IOException ex) {
                     return "";
-                }
             }
             @Override
             protected void sendResultToNative(String token) {
@@ -141,21 +126,7 @@ public class InstanceIDBridge {
         new BridgeAsyncTask<Boolean>() {
             @Override
             protected Boolean doBackgroundWork() {
-                try {
-                    mInstanceID.deleteToken(authorizedEntity, scope);
-                    String subscriptionId = LazySubscriptionsManager.buildSubscriptionUniqueId(
-                            mSubtype, authorizedEntity);
-                    if (LazySubscriptionsManager.isSubscriptionLazy(subscriptionId)) {
-                        LazySubscriptionsManager.deletePersistedMessagesForSubscriptionId(
-                                subscriptionId);
-                    }
-                    SubscriptionFlagManager.clearFlags(
-                            SubscriptionFlagManager.buildSubscriptionUniqueId(
-                                    mSubtype, authorizedEntity));
-                    return true;
-                } catch (IOException ex) {
-                    return false;
-                }
+                return false;
             }
             @Override
             protected void sendResultToNative(Boolean success) {
@@ -171,12 +142,7 @@ public class InstanceIDBridge {
         new BridgeAsyncTask<Boolean>() {
             @Override
             protected Boolean doBackgroundWork() {
-                try {
-                    mInstanceID.deleteInstanceID();
-                    return true;
-                } catch (IOException ex) {
-                    return false;
-                }
+                return true;
             }
             @Override
             protected void sendResultToNative(Boolean success) {
@@ -206,11 +172,6 @@ public class InstanceIDBridge {
                 @Override
                 @SuppressWarnings("NoSynchronizedThisCheck") // Only used/accessible by native.
                 protected Result doInBackground() {
-                    synchronized (InstanceIDBridge.this) {
-                        if (mInstanceID == null) {
-                            mInstanceID = InstanceIDWithSubtype.getInstance(mSubtype);
-                        }
-                    }
                     return doBackgroundWork();
                 }
                 @Override
diff --git a/components/media_router/browser/android/BUILD.gn b/components/media_router/browser/android/BUILD.gn
--- a/components/media_router/browser/android/BUILD.gn
+++ b/components/media_router/browser/android/BUILD.gn
@@ -11,10 +11,6 @@ android_library("java") {
   resources_package = "org.chromium.components.media_router"
   deps = [
     ":java_resources",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_cast_framework_java",
-    "$google_play_services_package:google_play_services_cast_java",
     "//base:base_java",
     "//components/browser_ui/media/android:java",
     "//content/public/android:content_java",
@@ -75,8 +71,6 @@ android_library("java") {
 android_library("cast_options_provider_java") {
   sources = [ "java/src/org/chromium/components/media_router/caf/CastOptionsProvider.java" ]
   deps = [
-    "$google_play_services_package:google_play_services_cast_framework_java",
-    "$google_play_services_package:google_play_services_cast_java",
   ]
 }
 
@@ -142,9 +136,6 @@ java_library("junit") {
   deps = [
     ":java",
     ":test_support_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_cast_framework_java",
-    "$google_play_services_package:google_play_services_cast_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:base_junit_test_support",
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/BrowserMediaRouter.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/BrowserMediaRouter.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/BrowserMediaRouter.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/BrowserMediaRouter.java
@@ -10,9 +10,6 @@ import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 import androidx.mediarouter.media.MediaRouter;
 
-import com.google.android.gms.common.ConnectionResult;
-import com.google.android.gms.common.GoogleApiAvailability;
-
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.StrictModeContext;
@@ -42,20 +39,7 @@ public class BrowserMediaRouter implements MediaRouteManager {
             new MediaRouteProvider.Factory() {
                 @Override
                 public void addProviders(MediaRouteManager manager) {
-                    int googleApiAvailabilityResult =
-                            GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(
-                                    ContextUtils.getApplicationContext(),
-                                    MIN_GOOGLE_PLAY_SERVICES_APK_VERSION);
-                    if (googleApiAvailabilityResult != ConnectionResult.SUCCESS) {
-                        GoogleApiAvailability.getInstance().showErrorNotification(
-                                ContextUtils.getApplicationContext(), googleApiAvailabilityResult);
-                        return;
-                    }
-                    MediaRouteProvider cafProvider = CafMediaRouteProvider.create(manager);
-                    manager.addMediaRouteProvider(cafProvider);
-                    MediaRouteProvider remotingProvider =
-                            CafRemotingMediaRouteProvider.create(manager);
-                    manager.addMediaRouteProvider(remotingProvider);
+                    return;
                 }
             };
 
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/CastSessionUtil.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/CastSessionUtil.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/CastSessionUtil.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/CastSessionUtil.java
@@ -4,9 +4,6 @@
 
 package org.chromium.components.media_router;
 
-import com.google.android.gms.cast.CastDevice;
-import com.google.android.gms.cast.RemoteMediaPlayer;
-
 import org.chromium.components.browser_ui.media.MediaNotificationInfo;
 import org.chromium.services.media_session.MediaMetadata;
 
@@ -18,36 +15,4 @@ public class CastSessionUtil {
 
     // The value is borrowed from the Android Cast SDK code to match their behavior.
     public static final double MIN_VOLUME_LEVEL_DELTA = 1e-7;
-
-    /**
-     * Builds a MediaMetadata from the given CastDevice and MediaPlayer, and sets it on the builder
-     */
-    public static void setNotificationMetadata(MediaNotificationInfo.Builder builder,
-            CastDevice castDevice, RemoteMediaPlayer mediaPlayer) {
-        MediaMetadata notificationMetadata = new MediaMetadata("", "", "");
-        builder.setMetadata(notificationMetadata);
-
-        if (castDevice != null) notificationMetadata.setTitle(castDevice.getFriendlyName());
-
-        if (mediaPlayer == null) return;
-
-        com.google.android.gms.cast.MediaInfo info = mediaPlayer.getMediaInfo();
-        if (info == null) return;
-
-        com.google.android.gms.cast.MediaMetadata metadata = info.getMetadata();
-        if (metadata == null) return;
-
-        String title = metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_TITLE);
-        if (title != null) notificationMetadata.setTitle(title);
-
-        String artist = metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_ARTIST);
-        if (artist == null) {
-            artist = metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_ALBUM_ARTIST);
-        }
-        if (artist != null) notificationMetadata.setArtist(artist);
-
-        String album =
-                metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_ALBUM_TITLE);
-        if (album != null) notificationMetadata.setAlbum(album);
-    }
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaSink.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaSink.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaSink.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaSink.java
@@ -8,41 +8,24 @@ import androidx.annotation.Nullable;
 import androidx.mediarouter.media.MediaRouter;
 import androidx.mediarouter.media.MediaRouter.RouteInfo;
 
-import com.google.android.gms.cast.CastDevice;
-
 /**
  * A common descriptor of a device that can present some URI.
  */
 public class MediaSink {
     private static final String CAST_SINK_URN_PREFIX = "urn:x-org.chromium:media:sink:cast-";
-    private final String mId;
-    private final String mName;
-    private final CastDevice mDevice;
-
-    /**
-     * Constructor.
-     * @param id A unique identifier of the sink.
-     * @param name A user friendly name of the sink.
-     * @param device {@link CastDevice} corresponding to this sink.
-     */
-    public MediaSink(String id, String name, CastDevice device) {
-        mId = id;
-        mName = name;
-        mDevice = device;
-    }
 
     /**
      * @return The unique identifier of the sink.
      */
     public String getId() {
-        return mId;
+        return "";
     }
 
     /**
      * @return The user friendly name of the sink.
      */
     public String getName() {
-        return mName;
+        return "";
     }
 
     /**
@@ -52,17 +35,8 @@ public class MediaSink {
         return CAST_SINK_URN_PREFIX + getId();
     }
 
-    public CastDevice getDevice() {
-        return mDevice;
-    }
-
     @Override
     public boolean equals(Object o) {
-        if (o == this) return true;
-        if (o instanceof MediaSink) {
-            MediaSink other = (MediaSink) o;
-            return mId.equals(other.getId()) && mName.equals(other.getName());
-        }
         return false;
     }
 
@@ -70,23 +44,15 @@ public class MediaSink {
     public int hashCode() {
         final int prime = 31;
         int result = 1;
-        result = prime * result + ((mId == null) ? 0 : mId.hashCode());
-        result = prime * result + ((mName == null) ? 0 : mName.hashCode());
         return result;
     }
 
-    @Override
-    public String toString() {
-        return String.format("MediaSink: %s, %s", getId(), getName());
-    }
-
     /**
      * @param route The route information provided by Android.
      * @return A new MediaSink instance corresponding to the specified {@link RouteInfo}.
      */
     public static MediaSink fromRoute(MediaRouter.RouteInfo route) {
-        return new MediaSink(
-                route.getId(), route.getName(), CastDevice.getFromBundle(route.getExtras()));
+        return null;
     }
 
     /**
@@ -97,10 +63,6 @@ public class MediaSink {
      */
     @Nullable
     public static MediaSink fromSinkId(String sinkId, MediaRouter router) {
-        for (MediaRouter.RouteInfo route : router.getRoutes()) {
-            MediaSink sink = MediaSink.fromRoute(route);
-            if (sink.getId().equals(sinkId)) return sink;
-        }
         return null;
     }
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaStatusBridge.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaStatusBridge.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaStatusBridge.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/MediaStatusBridge.java
@@ -4,10 +4,6 @@
 
 package org.chromium.components.media_router;
 
-import com.google.android.gms.cast.MediaInfo;
-import com.google.android.gms.cast.MediaMetadata;
-import com.google.android.gms.cast.MediaStatus;
-
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 
@@ -17,11 +13,6 @@ import org.chromium.base.annotations.JNINamespace;
  */
 @JNINamespace("media_router")
 public class MediaStatusBridge {
-    private MediaStatus mStatus;
-
-    public MediaStatusBridge(MediaStatus status) {
-        mStatus = status;
-    }
 
     /**
      * Gets the play state of the stream. Return values are defined as such:
@@ -34,7 +25,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public int playerState() {
-        return mStatus.getPlayerState();
+        return 0;
     }
 
     /**
@@ -48,7 +39,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public int idleReason() {
-        return mStatus.getIdleReason();
+        return 0;
     }
 
     /**
@@ -57,13 +48,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public String title() {
-        MediaInfo info = mStatus.getMediaInfo();
-        if (info == null) return "";
-
-        MediaMetadata metadata = info.getMetadata();
-        if (metadata == null) return "";
-
-        return metadata.getString(MediaMetadata.KEY_TITLE);
+        return "";
     }
 
     /**
@@ -71,7 +56,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public boolean canPlayPause() {
-        return mStatus.isMediaCommandSupported(MediaStatus.COMMAND_PAUSE);
+        return false;
     }
 
     /**
@@ -79,7 +64,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public boolean canMute() {
-        return mStatus.isMediaCommandSupported(MediaStatus.COMMAND_TOGGLE_MUTE);
+        return false;
     }
 
     /**
@@ -87,7 +72,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public boolean canSetVolume() {
-        return mStatus.isMediaCommandSupported(MediaStatus.COMMAND_SET_VOLUME);
+        return false;
     }
 
     /**
@@ -95,7 +80,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public boolean canSeek() {
-        return mStatus.isMediaCommandSupported(MediaStatus.COMMAND_SEEK);
+        return false;
     }
 
     /**
@@ -103,7 +88,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public boolean isMuted() {
-        return mStatus.isMute();
+        return false;
     }
 
     /**
@@ -113,7 +98,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public double volume() {
-        return mStatus.getStreamVolume();
+        return 0.0;
     }
 
     /**
@@ -122,10 +107,7 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public long duration() {
-        MediaInfo info = mStatus.getMediaInfo();
-        if (info == null) return 0;
-
-        return info.getStreamDuration();
+        return 0;
     }
 
     /**
@@ -133,6 +115,6 @@ public class MediaStatusBridge {
      */
     @CalledByNative
     public long currentTime() {
-        return mStatus.getStreamPosition();
+        return 0;
     }
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseNotificationController.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseNotificationController.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseNotificationController.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseNotificationController.java
@@ -6,10 +6,6 @@ package org.chromium.components.media_router.caf;
 
 import android.content.Intent;
 
-import com.google.android.gms.cast.CastDevice;
-import com.google.android.gms.cast.MediaStatus;
-import com.google.android.gms.cast.framework.media.RemoteMediaClient;
-
 import org.chromium.components.browser_ui.media.MediaNotificationInfo;
 import org.chromium.components.browser_ui.media.MediaNotificationListener;
 import org.chromium.components.browser_ui.media.MediaNotificationManager;
@@ -62,20 +58,6 @@ public abstract class BaseNotificationController
     public void onStatusUpdated() {
         if (mNotificationBuilder == null) return;
         if (!mSessionController.isConnected()) return;
-
-        MediaStatus mediaStatus = mSessionController.getRemoteMediaClient().getMediaStatus();
-        if (mediaStatus == null) return;
-
-        int playerState = mediaStatus.getPlayerState();
-        if (playerState == MediaStatus.PLAYER_STATE_PAUSED
-                || playerState == MediaStatus.PLAYER_STATE_PLAYING) {
-            mNotificationBuilder.setPaused(playerState != MediaStatus.PLAYER_STATE_PLAYING);
-            mNotificationBuilder.setActions(
-                    MediaNotificationInfo.ACTION_STOP | MediaNotificationInfo.ACTION_PLAY_PAUSE);
-        } else {
-            mNotificationBuilder.setActions(MediaNotificationInfo.ACTION_STOP);
-        }
-        MediaRouterClient.getInstance().showNotification(mNotificationBuilder.build());
     }
 
     /** Called when media metadata updated. */
@@ -91,30 +73,6 @@ public abstract class BaseNotificationController
         mNotificationBuilder.setMetadata(notificationMetadata);
 
         if (!mSessionController.isConnected()) return;
-
-        CastDevice castDevice = mSessionController.getSession().getCastDevice();
-        if (castDevice != null) notificationMetadata.setTitle(castDevice.getFriendlyName());
-
-        RemoteMediaClient remoteMediaClient = mSessionController.getRemoteMediaClient();
-
-        com.google.android.gms.cast.MediaInfo info = remoteMediaClient.getMediaInfo();
-        if (info == null) return;
-
-        com.google.android.gms.cast.MediaMetadata metadata = info.getMetadata();
-        if (metadata == null) return;
-
-        String title = metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_TITLE);
-        if (title != null) notificationMetadata.setTitle(title);
-
-        String artist = metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_ARTIST);
-        if (artist == null) {
-            artist = metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_ALBUM_ARTIST);
-        }
-        if (artist != null) notificationMetadata.setArtist(artist);
-
-        String album =
-                metadata.getString(com.google.android.gms.cast.MediaMetadata.KEY_ALBUM_TITLE);
-        if (album != null) notificationMetadata.setAlbum(album);
     }
 
     /////////////////////////////////////////////////////////////////////////////////////////////
@@ -122,20 +80,10 @@ public abstract class BaseNotificationController
 
     @Override
     public void onPlay(int actionSource) {
-        if (!mSessionController.isConnected()) return;
-
-        mSessionController.getRemoteMediaClient().play();
-        MediaRouteUmaRecorder.recordCastNotificationControlsAction(
-                MediaRouteUmaRecorder.CastNotificationControls.RESUME);
     }
 
     @Override
     public void onPause(int actionSource) {
-        if (!mSessionController.isConnected()) return;
-
-        mSessionController.getRemoteMediaClient().pause();
-        MediaRouteUmaRecorder.recordCastNotificationControlsAction(
-                MediaRouteUmaRecorder.CastNotificationControls.PAUSE);
     }
 
     @Override
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseSessionController.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseSessionController.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseSessionController.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/BaseSessionController.java
@@ -6,12 +6,7 @@ package org.chromium.components.media_router.caf;
 
 import androidx.annotation.Nullable;
 
-import com.google.android.gms.cast.CastDevice;
-import com.google.android.gms.cast.framework.CastSession;
-import com.google.android.gms.cast.framework.media.RemoteMediaClient;
-
 import org.chromium.base.Log;
-import org.chromium.components.media_router.CastSessionUtil;
 import org.chromium.components.media_router.FlingingController;
 import org.chromium.components.media_router.MediaSink;
 import org.chromium.components.media_router.MediaSource;
@@ -42,15 +37,12 @@ public abstract class BaseSessionController {
         void onMetadataUpdated();
     }
 
-    private CastSession mCastSession;
     private final CafBaseMediaRouteProvider mProvider;
     private CreateRouteRequestInfo mRouteCreationInfo;
-    private final RemoteMediaClient.Callback mRemoteMediaClientCallback;
     private final List<Callback> mCallbacks = new ArrayList<>();
 
     public BaseSessionController(CafBaseMediaRouteProvider provider) {
         mProvider = provider;
-        mRemoteMediaClientCallback = new RemoteMediaClientCallback();
     }
 
     public void addCallback(Callback callback) {
@@ -63,9 +55,6 @@ public abstract class BaseSessionController {
 
     public void requestSessionLaunch() {
         mRouteCreationInfo = mProvider.getPendingCreateRouteRequestInfo();
-        CastUtils.getCastContext().setReceiverApplicationId(
-                mRouteCreationInfo.source.getApplicationId());
-
         // When the user clicks a route on the MediaRouteChooserDialog, we intercept the click event
         // and do not select the route. Instead the route selection is postponed to here. This will
         // trigger CAF to launch the session.
@@ -84,69 +73,22 @@ public abstract class BaseSessionController {
         return mRouteCreationInfo;
     }
 
-    public CastSession getSession() {
-        return mCastSession;
-    }
-
-    public RemoteMediaClient getRemoteMediaClient() {
-        return isConnected() ? mCastSession.getRemoteMediaClient() : null;
-    }
-
     public abstract BaseNotificationController getNotificationController();
 
     public void endSession() {
-        CastUtils.getCastContext().getSessionManager().endCurrentSession(/* stopCasting= */ true);
-        CastUtils.getCastContext().setReceiverApplicationId(null);
     }
 
     public List<String> getCapabilities() {
         List<String> capabilities = new ArrayList<>();
-        if (mCastSession == null || !mCastSession.isConnected()) return capabilities;
-        CastDevice device = mCastSession.getCastDevice();
-        if (device.hasCapability(CastDevice.CAPABILITY_AUDIO_IN)) {
-            capabilities.add("audio_in");
-        }
-        if (device.hasCapability(CastDevice.CAPABILITY_AUDIO_OUT)) {
-            capabilities.add("audio_out");
-        }
-        if (device.hasCapability(CastDevice.CAPABILITY_VIDEO_IN)) {
-            capabilities.add("video_in");
-        }
-        if (device.hasCapability(CastDevice.CAPABILITY_VIDEO_OUT)) {
-            capabilities.add("video_out");
-        }
         return capabilities;
     }
 
     public boolean isConnected() {
-        return mCastSession != null && mCastSession.isConnected();
+        return false;
     }
 
     private void updateRemoteMediaClient(String message) {
         if (!isConnected()) return;
-
-        mCastSession.getRemoteMediaClient().onMessageReceived(
-                mCastSession.getCastDevice(), CastSessionUtil.MEDIA_NAMESPACE, message);
-    }
-
-    /** Attaches the controller to the current {@link CastSession}. */
-    public void attachToCastSession(CastSession session) {
-        mCastSession = session;
-        RemoteMediaClient uncheckedRemoteMediaClient = mCastSession.getRemoteMediaClient();
-        if (uncheckedRemoteMediaClient != null) {
-            uncheckedRemoteMediaClient.registerCallback(mRemoteMediaClientCallback);
-        }
-    }
-
-    /** Detaches the controller from any {@link CastSession}. */
-    public void detachFromCastSession() {
-        if (mCastSession == null) return;
-
-        RemoteMediaClient uncheckedRemoteMediaClient = mCastSession.getRemoteMediaClient();
-        if (uncheckedRemoteMediaClient != null) {
-            uncheckedRemoteMediaClient.unregisterCallback(mRemoteMediaClientCallback);
-        }
-        mCastSession = null;
     }
 
     /** Called when session started. */
@@ -163,50 +105,12 @@ public abstract class BaseSessionController {
         return mProvider;
     }
 
-    /**
-     * All sub-classes need to register this method to listen to messages of the namespaces they are
-     * interested in.
-     */
-    protected void onMessageReceived(CastDevice castDevice, String namespace, String message) {
-        Log.d(TAG,
-                "Received message from Cast device: namespace=\"" + namespace + "\" message=\""
-                        + message + "\"");
-        if (CastSessionUtil.MEDIA_NAMESPACE.equals(namespace)) {
-            updateRemoteMediaClient(message);
-        }
-    }
-
-    private class RemoteMediaClientCallback extends RemoteMediaClient.Callback {
-        @Override
-        public void onStatusUpdated() {
-            BaseSessionController.this.onStatusUpdated();
-        }
-
-        @Override
-        public void onMetadataUpdated() {
-            BaseSessionController.this.onMetadataUpdated();
-        }
-    }
-
-    protected void onStatusUpdated() {
-        notifyCallback((Callback callback) -> callback.onStatusUpdated());
-    }
-
-    protected void onMetadataUpdated() {
-        notifyCallback((Callback callback) -> callback.onMetadataUpdated());
-    }
-
-    @Nullable
-    public FlingingController getFlingingController() {
-        return null;
-    }
-
     /**
      *  Helper message to get the session ID of the attached session. For stubbing in tests as
      * {@link CastSession#getSessionId()} is final.
      */
     public String getSessionId() {
-        return isConnected() ? getSession().getSessionId() : null;
+        return null;
     }
 
     private void notifyCallback(NotifyCallbackAction action) {
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafBaseMediaRouteProvider.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafBaseMediaRouteProvider.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafBaseMediaRouteProvider.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafBaseMediaRouteProvider.java
@@ -12,10 +12,6 @@ import androidx.mediarouter.media.MediaRouteSelector;
 import androidx.mediarouter.media.MediaRouter;
 import androidx.mediarouter.media.MediaRouter.RouteInfo;
 
-import com.google.android.gms.cast.framework.CastSession;
-import com.google.android.gms.cast.framework.SessionManagerListener;
-import com.google.android.gms.cast.framework.media.RemoteMediaClient;
-
 import org.chromium.base.Log;
 import org.chromium.components.media_router.DiscoveryCallback;
 import org.chromium.components.media_router.DiscoveryDelegate;
@@ -39,7 +35,7 @@ import java.util.Set;
  * A base provider containing common implementation for CAF-based {@link MediaRouteProvider}s.
  */
 public abstract class CafBaseMediaRouteProvider
-        implements MediaRouteProvider, DiscoveryDelegate, SessionManagerListener<CastSession> {
+        implements MediaRouteProvider, DiscoveryDelegate {
     private static final String TAG = "CafMR";
 
     protected static final List<MediaSink> NO_SINKS = Collections.emptyList();
@@ -155,7 +151,6 @@ public abstract class CafBaseMediaRouteProvider
             // current session and clean up the routes (can't wait for session ending as the signal
             // might be delayed).
             sessionController().endSession();
-            handleSessionEnd();
         }
         if (mPendingCreateRouteRequestInfo != null) {
             cancelPendingRequest("Request replaced");
@@ -184,9 +179,6 @@ public abstract class CafBaseMediaRouteProvider
             mManager.onCreateRouteRequestError("The sink does not exist", nativeRequestId);
         }
 
-        CastUtils.getCastContext().getSessionManager().addSessionManagerListener(
-                this, CastSession.class);
-
         mPendingCreateRouteRequestInfo = new CreateRouteRequestInfo(source, sink, presentationId,
                 origin, tabId, isOffTheRecord, nativeRequestId, targetRouteInfo);
 
@@ -213,110 +205,6 @@ public abstract class CafBaseMediaRouteProvider
         removeRoute(routeId, /* error= */ null);
     }
 
-    ///////////////////////////////////////////////////////
-    // SessionManagerListener implementation begin
-    ///////////////////////////////////////////////////////
-
-    @Override
-    public final void onSessionStarting(CastSession session) {
-        // The session is not connected yet at this point so this is no-op.
-    }
-
-    @Override
-    public void onSessionStartFailed(CastSession session, int error) {
-        removeAllRoutes("Launch error");
-        cancelPendingRequest("Launch error");
-    }
-
-    @Override
-    public void onSessionStarted(CastSession session, String sessionId) {
-        Log.d(TAG, "onSessionStarted");
-
-        if (session != CastUtils.getCastContext().getSessionManager().getCurrentCastSession()) {
-            // Sometimes the session start signal might come in for an earlier launch request, which
-            // should be ignored.
-            return;
-        }
-
-        if (session == sessionController().getSession() || mPendingCreateRouteRequestInfo == null) {
-            // Early return for any possible case that the session start signal comes in twice for
-            // the same session.
-            return;
-        }
-        handleSessionStart(session, sessionId);
-    }
-
-    @Override
-    public final void onSessionResumed(CastSession session, boolean wasSuspended) {
-        sessionController().attachToCastSession(session);
-    }
-
-    @Override
-    public final void onSessionResuming(CastSession session, String sessionId) {}
-
-    @Override
-    public final void onSessionResumeFailed(CastSession session, int error) {}
-
-    @Override
-    public final void onSessionEnding(CastSession session) {
-        RemoteMediaClient client = session.getRemoteMediaClient();
-        if (client != null) {
-            MediaRouteUmaRecorder.castEndedTimeRemaining(
-                    client.getApproximateStreamPosition(), client.getStreamDuration());
-        }
-        handleSessionEnd();
-    }
-
-    @Override
-    public final void onSessionEnded(CastSession session, int error) {
-        Log.d(TAG, "Session ended with error code " + error);
-        RemoteMediaClient client = session.getRemoteMediaClient();
-        if (client != null) {
-            MediaRouteUmaRecorder.castEndedTimeRemaining(
-                    client.getApproximateStreamPosition(), client.getStreamDuration());
-        }
-        handleSessionEnd();
-    }
-
-    @Override
-    public final void onSessionSuspended(CastSession session, int reason) {
-        sessionController().detachFromCastSession();
-    }
-
-    ///////////////////////////////////////////////////////
-    // SessionManagerListener implementation end
-    ///////////////////////////////////////////////////////
-
-    protected void handleSessionStart(CastSession session, String sessionId) {
-        sessionController().attachToCastSession(session);
-        sessionController().onSessionStarted();
-
-        MediaSink sink = mPendingCreateRouteRequestInfo.sink;
-        MediaSource source = mPendingCreateRouteRequestInfo.source;
-        MediaRoute route = new MediaRoute(
-                sink.getId(), source.getSourceId(), mPendingCreateRouteRequestInfo.presentationId);
-        addRoute(route, mPendingCreateRouteRequestInfo.origin, mPendingCreateRouteRequestInfo.tabId,
-                mPendingCreateRouteRequestInfo.nativeRequestId, /* wasLaunched= */ true);
-
-        mPendingCreateRouteRequestInfo = null;
-    }
-
-    private void handleSessionEnd() {
-        if (mPendingCreateRouteRequestInfo != null) {
-            // The Cast SDK notifies about session ending when a route is unselected, even when
-            // there's no current session. Because CastSessionController unselects the route to set
-            // the receiver app ID, this needs to be guarded by a pending request null check to make
-            // sure the listener is not unregistered during a session relaunch.
-            return;
-        }
-        sessionController().onSessionEnded();
-        sessionController().detachFromCastSession();
-        getAndroidMediaRouter().selectRoute(getAndroidMediaRouter().getDefaultRoute());
-        terminateAllRoutes();
-        CastUtils.getCastContext().getSessionManager().removeSessionManagerListener(
-                this, CastSession.class);
-    }
-
     private void cancelPendingRequest(String error) {
         if (mPendingCreateRouteRequestInfo == null) return;
 
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMediaRouteProvider.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMediaRouteProvider.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMediaRouteProvider.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMediaRouteProvider.java
@@ -11,8 +11,6 @@ import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 import androidx.mediarouter.media.MediaRouter;
 
-import com.google.android.gms.cast.framework.CastSession;
-
 import org.chromium.base.Log;
 import org.chromium.components.media_router.BrowserMediaRouter;
 import org.chromium.components.media_router.ClientRecord;
@@ -150,20 +148,6 @@ public class CafMediaRouteProvider extends CafBaseMediaRouteProvider {
         return mMessageHandler;
     }
 
-    @Override
-    protected void handleSessionStart(CastSession session, String sessionId) {
-        super.handleSessionStart(session, sessionId);
-
-        for (ClientRecord clientRecord : mClientIdToRecords.values()) {
-            // Should be exactly one instance of MediaRoute/ClientRecord at this moment.
-            mMessageHandler.sendReceiverActionToClient(clientRecord.routeId,
-                    sessionController().getSink(), clientRecord.clientId, "cast");
-        }
-
-        mMessageHandler.onSessionStarted();
-        sessionController().getSession().getRemoteMediaClient().requestStatus();
-    }
-
     @Override
     protected void addRoute(
             MediaRoute route, String origin, int tabId, int nativeRequestId, boolean wasLaunched) {
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMessageHandler.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMessageHandler.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMessageHandler.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CafMessageHandler.java
@@ -13,10 +13,6 @@ import android.util.SparseArray;
 import androidx.annotation.VisibleForTesting;
 import androidx.collection.ArrayMap;
 
-import com.google.android.gms.cast.ApplicationMetadata;
-import com.google.android.gms.common.api.PendingResult;
-import com.google.android.gms.common.api.Status;
-
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -345,49 +341,7 @@ public class CafMessageHandler {
             final int sequenceNumber) throws JSONException {
         if (volumeMessage == null) return false;
         if (!mSessionController.isConnected()) return false;
-        boolean shouldWaitForVolumeChange = false;
-        try {
-            if (!volumeMessage.isNull("muted")) {
-                boolean newMuted = volumeMessage.getBoolean("muted");
-                if (mSessionController.getSession().isMute() != newMuted) {
-                    mSessionController.getSession().setMute(newMuted);
-                    shouldWaitForVolumeChange = true;
-                }
-            }
-            if (!volumeMessage.isNull("level")) {
-                double newLevel = volumeMessage.getDouble("level");
-                double currentLevel = mSessionController.getSession().getVolume();
-                if (!Double.isNaN(currentLevel)
-                        && Math.abs(currentLevel - newLevel)
-                                > CastSessionUtil.MIN_VOLUME_LEVEL_DELTA) {
-                    mSessionController.getSession().setVolume(newLevel);
-                    shouldWaitForVolumeChange = true;
-                }
-            }
-        } catch (IOException | IllegalStateException e) {
-            Log.e(TAG, "Failed to send volume command: " + e);
-            return false;
-        }
-
-        // For each successful volume message we need to respond with an empty "v2_message" so the
-        // Cast Web SDK can call the success callback of the page. If we expect the volume to change
-        // as the result of the command, we're relying on {@link Cast.CastListener#onVolumeChanged}
-        // to get called by the Android Cast SDK when the receiver status is updated. We keep the
-        // sequence number until then. If the volume doesn't change as the result of the command, we
-        // won't get notified by the Android SDK
-        if (shouldWaitForVolumeChange) {
-            mVolumeRequests.add(new RequestRecord(clientId, sequenceNumber));
-        } else {
-            // It's usually bad to have request and response on the same call stack so post the
-            // response to the Android message loop.
-            mHandler.post(new Runnable() {
-                @Override
-                public void run() {
-                    onVolumeChanged(clientId, sequenceNumber);
-                }
-            });
-        }
-        return true;
+        return false;
     }
 
     @VisibleForTesting
@@ -675,19 +629,11 @@ public class CafMessageHandler {
         try {
             // "volume" is a part of "receiver" initialized below.
             JSONObject jsonVolume = new JSONObject();
-            jsonVolume.put("level", mSessionController.getSession().getVolume());
-            jsonVolume.put("muted", mSessionController.getSession().isMute());
 
             // "receiver" is a part of "message" initialized below.
             JSONObject jsonReceiver = new JSONObject();
-            jsonReceiver.put(
-                    "label", mSessionController.getSession().getCastDevice().getDeviceId());
-            jsonReceiver.put("friendlyName",
-                    mSessionController.getSession().getCastDevice().getFriendlyName());
             jsonReceiver.put("capabilities", toJSONArray(mSessionController.getCapabilities()));
             jsonReceiver.put("volume", jsonVolume);
-            jsonReceiver.put(
-                    "isActiveInput", mSessionController.getSession().getActiveInputState());
             jsonReceiver.put("displayStatus", null);
             jsonReceiver.put("receiverType", "cast");
 
@@ -700,23 +646,14 @@ public class CafMessageHandler {
 
             JSONObject jsonMessage = new JSONObject();
             jsonMessage.put("sessionId", mSessionController.getSessionId());
-            jsonMessage.put("statusText", mSessionController.getSession().getApplicationStatus());
             jsonMessage.put("receiver", jsonReceiver);
             jsonMessage.put("namespaces", jsonNamespaces);
             jsonMessage.put("media", toJSONArray(new ArrayList<>()));
             jsonMessage.put("status", "connected");
             jsonMessage.put("transportId", "web-4");
 
-            ApplicationMetadata applicationMetadata =
-                    mSessionController.getSession().getApplicationMetadata();
-            if (applicationMetadata != null) {
-                jsonMessage.put("appId", applicationMetadata.getApplicationId());
-            } else {
-                jsonMessage.put("appId",
-                        mSessionController.getRouteCreationInfo().source.getApplicationId());
-            }
-            jsonMessage.put("displayName",
-                    mSessionController.getSession().getCastDevice().getFriendlyName());
+            jsonMessage.put("appId",
+                    mSessionController.getRouteCreationInfo().source.getApplicationId());
 
             return jsonMessage.toString();
         } catch (JSONException e) {
@@ -797,32 +734,6 @@ public class CafMessageHandler {
     boolean sendStringCastMessage(
             String message, String namespace, String clientId, int sequenceNumber) {
         if (!mSessionController.isConnected()) return false;
-
-        PendingResult<Status> pendingResult =
-                mSessionController.getSession().sendMessage(namespace, message);
-        if (!TextUtils.equals(namespace, CastSessionUtil.MEDIA_NAMESPACE)) {
-            // Media commands wait for the media status update as a result.
-            pendingResult.setResultCallback(
-                    (Status result) -> onSendAppMessageResult(result, clientId, sequenceNumber));
-        }
-        return true;
-    }
-
-    /**
-     * Notifies a client that an app message has been sent.
-     * @param clientId The client id the message is sent from.
-     * @param sequenceNumber The sequence number of the message.
-     */
-    void onSendAppMessageResult(Status result, String clientId, int sequenceNumber) {
-        if (!result.isSuccess()) {
-            // TODO(avayvod): should actually report back to the page.
-            // See https://crbug.com/550445.
-            Log.e(TAG, "Failed to send the message: " + result);
-            return;
-        }
-
-        // App messages wait for the empty message with the sequence
-        // number.
-        sendEnclosedMessageToClient(clientId, "app_message", null, sequenceNumber);
+        return false;
     }
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastMediaSource.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastMediaSource.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastMediaSource.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastMediaSource.java
@@ -9,8 +9,6 @@ import android.net.Uri;
 import androidx.annotation.Nullable;
 import androidx.mediarouter.media.MediaRouteSelector;
 
-import com.google.android.gms.cast.CastMediaControlIntent;
-
 import org.chromium.components.media_router.MediaSource;
 
 import java.util.Arrays;
@@ -106,13 +104,7 @@ public class CastMediaSource implements MediaSource {
      */
     @Override
     public MediaRouteSelector buildRouteSelector() {
-        try {
-            return new MediaRouteSelector.Builder()
-                    .addControlCategory(CastMediaControlIntent.categoryForCast(mApplicationId))
-                    .build();
-        } catch (IllegalArgumentException e) {
-            return null;
-        }
+        return null;
     }
 
     /**
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastOptionsProvider.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastOptionsProvider.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastOptionsProvider.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastOptionsProvider.java
@@ -6,28 +6,8 @@ package org.chromium.components.media_router.caf;
 
 import android.content.Context;
 
-import com.google.android.gms.cast.LaunchOptions;
-import com.google.android.gms.cast.framework.CastOptions;
-import com.google.android.gms.cast.framework.OptionsProvider;
-import com.google.android.gms.cast.framework.SessionProvider;
-
 import java.util.List;
 
 /** {@link OptionsProvider} implementation for Chrome MR. */
-public class CastOptionsProvider implements OptionsProvider {
-    @Override
-    public CastOptions getCastOptions(Context context) {
-        return new CastOptions.Builder()
-                .setCastMediaOptions(null)
-                .setEnableReconnectionService(false)
-                .setLaunchOptions(new LaunchOptions.Builder().setRelaunchIfRunning(true).build())
-                .setResumeSavedSession(false)
-                .setStopReceiverApplicationWhenEndingSession(true)
-                .build();
-    }
-
-    @Override
-    public List<SessionProvider> getAdditionalSessionProviders(Context context) {
-        return null;
-    }
+public class CastOptionsProvider {
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastSessionController.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastSessionController.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastSessionController.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastSessionController.java
@@ -7,11 +7,6 @@ package org.chromium.components.media_router.caf;
 import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 
-import com.google.android.gms.cast.ApplicationMetadata;
-import com.google.android.gms.cast.Cast;
-import com.google.android.gms.cast.CastDevice;
-import com.google.android.gms.cast.framework.CastSession;
-
 import org.chromium.base.Log;
 
 import java.util.ArrayList;
@@ -24,12 +19,10 @@ public class CastSessionController extends BaseSessionController {
     private static final String TAG = "CafSessionCtrl";
 
     private List<String> mNamespaces = new ArrayList<String>();
-    private CastListener mCastListener;
     private CafNotificationController mNotificationController;
 
     public CastSessionController(CafBaseMediaRouteProvider provider) {
         super(provider);
-        mCastListener = new CastListener();
         mNotificationController = new CafNotificationController(this);
     }
 
@@ -37,30 +30,6 @@ public class CastSessionController extends BaseSessionController {
         return mNamespaces;
     }
 
-    /**
-     * Init nested fields for testing. The reason is that nested classes are bound to the original
-     * instance instead of the spyed instance.
-     */
-    void initNestedFieldsForTesting() {
-        mCastListener = new CastListener();
-    }
-
-    @Override
-    public void attachToCastSession(CastSession session) {
-        super.attachToCastSession(session);
-        getSession().addCastListener(mCastListener);
-        updateNamespaces();
-    }
-
-    @Override
-    public void detachFromCastSession() {
-        if (getSession() == null) return;
-
-        mNamespaces.clear();
-        getSession().removeCastListener(mCastListener);
-        super.detachFromCastSession();
-    }
-
     @Override
     public void onSessionEnded() {
         getMessageHandler().onSessionEnded();
@@ -72,24 +41,6 @@ public class CastSessionController extends BaseSessionController {
         return mNotificationController;
     }
 
-    private class CastListener extends Cast.Listener {
-        @Override
-        public void onApplicationStatusChanged() {
-            CastSessionController.this.onApplicationStatusChanged();
-        }
-
-        @Override
-        public void onApplicationMetadataChanged(ApplicationMetadata metadata) {
-            CastSessionController.this.onApplicationStatusChanged();
-        }
-
-        @Override
-        public void onVolumeChanged() {
-            CastSessionController.this.onApplicationStatusChanged();
-            getMessageHandler().onVolumeChanged();
-        }
-    }
-
     private void onApplicationStatusChanged() {
         updateNamespaces();
 
@@ -100,53 +51,18 @@ public class CastSessionController extends BaseSessionController {
     @VisibleForTesting
     void updateNamespaces() {
         if (!isConnected()) return;
-
-        if (getSession().getApplicationMetadata() == null
-                || getSession().getApplicationMetadata().getSupportedNamespaces() == null) {
-            return;
-        }
-
-        Set<String> namespacesToAdd =
-                new HashSet<>(getSession().getApplicationMetadata().getSupportedNamespaces());
-        Set<String> namespacesToRemove = new HashSet<String>(mNamespaces);
-
-        namespacesToRemove.removeAll(namespacesToAdd);
-        namespacesToAdd.removeAll(mNamespaces);
-
-        for (String namespace : namespacesToRemove) unregisterNamespace(namespace);
-        for (String namespace : namespacesToAdd) registerNamespace(namespace);
     }
 
     private void registerNamespace(String namespace) {
         assert !mNamespaces.contains(namespace);
 
         if (!isConnected()) return;
-
-        try {
-            getSession().setMessageReceivedCallbacks(namespace, this::onMessageReceived);
-            mNamespaces.add(namespace);
-        } catch (Exception e) {
-            Log.e(TAG, "Failed to register namespace listener for %s", namespace, e);
-        }
     }
 
     private void unregisterNamespace(String namespace) {
         assert mNamespaces.contains(namespace);
 
         if (!isConnected()) return;
-
-        try {
-            getSession().removeMessageReceivedCallbacks(namespace);
-            mNamespaces.remove(namespace);
-        } catch (Exception e) {
-            Log.e(TAG, "Failed to remove the namespace listener for %s", namespace, e);
-        }
-    }
-
-    @Override
-    protected void onMessageReceived(CastDevice castDevice, String namespace, String message) {
-        super.onMessageReceived(castDevice, namespace, message);
-        getMessageHandler().onMessageReceived(namespace, message);
     }
 
     @NonNull
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastUtils.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastUtils.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastUtils.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/CastUtils.java
@@ -4,18 +4,10 @@
 
 package org.chromium.components.media_router.caf;
 
-import com.google.android.gms.cast.framework.CastContext;
-
 import org.chromium.components.media_router.MediaRouterClient;
 
 /** Utility methods for Cast. */
 public class CastUtils {
-    /** Helper method to return the {@link CastContext} instance. */
-    public static CastContext getCastContext() {
-        return CastContext.getSharedInstance(
-                MediaRouterClient.getInstance().getContextForRemoting());
-    }
-
     /**
      * Compares two origins. Empty origin strings correspond to unique origins in
      * url::Origin.
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafExpandedControllerActivity.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafExpandedControllerActivity.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafExpandedControllerActivity.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafExpandedControllerActivity.java
@@ -45,60 +45,35 @@ public class CafExpandedControllerActivity
     private MediaController.Delegate mControllerDelegate = new MediaController.Delegate() {
         @Override
         public void play() {
-            if (!mSessionController.isConnected()) return;
-
-            mSessionController.getSession().getRemoteMediaClient().play();
-            MediaRouteUmaRecorder.recordFullscreenControlsAction(
-                    MediaRouteUmaRecorder.FullScreenControls.RESUME);
         }
 
         @Override
         public void pause() {
-            if (!mSessionController.isConnected()) return;
-
-            mSessionController.getSession().getRemoteMediaClient().pause();
-            MediaRouteUmaRecorder.recordFullscreenControlsAction(
-                    MediaRouteUmaRecorder.FullScreenControls.PAUSE);
         }
 
         @Override
         public long getDuration() {
-            if (!mSessionController.isConnected()) return 0;
-            return mSessionController.getFlingingController().getDuration();
+            return 0;
         }
 
         @Override
         public long getPosition() {
-            if (!mSessionController.isConnected()) return 0;
-            return mSessionController.getFlingingController().getApproximateCurrentTime();
+            return 0;
         }
 
         @Override
         public void seekTo(long pos) {
-            if (!mSessionController.isConnected()) return;
-
-            mSessionController.getSession().getRemoteMediaClient().seek(pos);
-            MediaRouteUmaRecorder.recordFullscreenControlsAction(
-                    MediaRouteUmaRecorder.FullScreenControls.SEEK);
         }
 
         @Override
         public boolean isPlaying() {
-            if (!mSessionController.isConnected()) return false;
-
-            return mSessionController.getSession().getRemoteMediaClient().isPlaying();
+            return false;
         }
 
         @Override
         public long getActionFlags() {
             long flags =
                     PlaybackStateCompat.ACTION_REWIND | PlaybackStateCompat.ACTION_FAST_FORWARD;
-            if (mSessionController.isConnected()
-                    && mSessionController.getSession().getRemoteMediaClient().isPlaying()) {
-                flags |= PlaybackStateCompat.ACTION_PAUSE;
-            } else {
-                flags |= PlaybackStateCompat.ACTION_PLAY;
-            }
             return flags;
         }
     };
@@ -187,20 +162,10 @@ public class CafExpandedControllerActivity
     private void updateUi() {
         if (!mSessionController.isConnected()) return;
 
-        String deviceName = mSessionController.getSession().getCastDevice().getFriendlyName();
-        String titleText = "";
-        if (deviceName != null) {
-            titleText = getResources().getString(R.string.cast_casting_video, deviceName);
-        }
-        mTitleView.setText(titleText);
-
         mMediaController.refresh();
         mMediaController.updateProgress();
 
         cancelProgressUpdateTask();
-        if (mSessionController.getSession().getRemoteMediaClient().isPlaying()) {
-            scheduleProgressUpdateTask();
-        }
     }
 
     private void scheduleProgressUpdateTask() {
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafRemotingMediaRouteProvider.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafRemotingMediaRouteProvider.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafRemotingMediaRouteProvider.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/CafRemotingMediaRouteProvider.java
@@ -49,9 +49,6 @@ public class CafRemotingMediaRouteProvider extends CafBaseMediaRouteProvider {
     @Override
     public void detachRoute(String routeId) {
         super.detachRoute(routeId);
-        MediaRouteUmaRecorder.recordRemoteSessionTimeWithoutMediaElementPercentage(
-                mSessionController.getFlingingController().getApproximateCurrentTime(),
-                mSessionController.getFlingingController().getDuration());
     }
 
     @Override
@@ -74,6 +71,6 @@ public class CafRemotingMediaRouteProvider extends CafBaseMediaRouteProvider {
 
         if (!mRoutes.containsKey(routeId)) return null;
 
-        return sessionController().getFlingingController();
+        return null;
     }
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/FlingingControllerAdapter.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/FlingingControllerAdapter.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/FlingingControllerAdapter.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/FlingingControllerAdapter.java
@@ -4,11 +4,6 @@
 
 package org.chromium.components.media_router.caf.remoting;
 
-import com.google.android.gms.cast.MediaInfo;
-import com.google.android.gms.cast.MediaStatus;
-import com.google.android.gms.cast.framework.media.RemoteMediaClient;
-import com.google.android.gms.common.api.Result;
-
 import org.chromium.base.Log;
 import org.chromium.components.media_router.FlingingController;
 import org.chromium.components.media_router.MediaController;
@@ -69,14 +64,6 @@ public class FlingingControllerAdapter implements FlingingController, MediaContr
     /** Starts loading the media URL, from the given position. */
     public void load(long position) {
         if (!mSessionController.isConnected()) return;
-
-        mLoaded = true;
-
-        MediaInfo mediaInfo = new MediaInfo.Builder(mMediaUrl)
-                                      .setContentType("*/*")
-                                      .setStreamType(MediaInfo.STREAM_TYPE_BUFFERED)
-                                      .build();
-        mSessionController.getRemoteMediaClient().load(mediaInfo, /* autoplay= */ true, position);
     }
 
     ////////////////////////////////////////////
@@ -91,89 +78,28 @@ public class FlingingControllerAdapter implements FlingingController, MediaContr
             load(/* position= */ 0);
             return;
         }
-
-        mSessionController.getRemoteMediaClient().play().setResultCallback(
-                this::onMediaCommandResult);
     }
 
     @Override
     public void pause() {
         if (!mSessionController.isConnected()) return;
-        mSessionController.getRemoteMediaClient().pause().setResultCallback(
-                this::onMediaCommandResult);
     }
 
     @Override
     public void setMute(boolean mute) {
         if (!mSessionController.isConnected()) return;
-        mSessionController.getRemoteMediaClient().setStreamMute(mute).setResultCallback(
-                this::onMediaCommandResult);
     }
 
     @Override
     public void setVolume(double volume) {
         if (!mSessionController.isConnected()) return;
-        mSessionController.getRemoteMediaClient().setStreamVolume(volume).setResultCallback(
-                this::onMediaCommandResult);
     }
 
     @Override
     public void seek(long position) {
-        if (!mSessionController.isConnected()) return;
-
-        if (!mLoaded) {
-            load(position);
-            return;
-        }
-
-        mSessionController.getRemoteMediaClient().seek(position).setResultCallback(
-                this::onMediaCommandResult);
-        mStreamPositionExtrapolator.onSeek(position);
     }
 
     ////////////////////////////////////////////
     // MediaController implementation end
     ////////////////////////////////////////////
-
-    public void onStatusUpdated() {
-        if (mMediaStatusObserver == null) return;
-
-        RemoteMediaClient remoteMediaClient = mSessionController.getRemoteMediaClient();
-
-        MediaStatus mediaStatus = remoteMediaClient.getMediaStatus();
-        if (mediaStatus != null) {
-            mHasEverReceivedValidMediaSession = true;
-            if (mediaStatus.getPlayerState() == MediaStatus.PLAYER_STATE_IDLE
-                    && mediaStatus.getIdleReason() == MediaStatus.IDLE_REASON_FINISHED) {
-                mLoaded = false;
-                mStreamPositionExtrapolator.onFinish();
-            } else {
-                mStreamPositionExtrapolator.update(remoteMediaClient.getStreamDuration(),
-                        remoteMediaClient.getApproximateStreamPosition(),
-                        remoteMediaClient.isPlaying(), mediaStatus.getPlaybackRate());
-            }
-
-            mMediaStatusObserver.onMediaStatusUpdate(new MediaStatusBridge(mediaStatus));
-
-        } else if (mHasEverReceivedValidMediaSession) {
-            // We can receive a null |mediaStatus| while we are in the process of loading the video.
-            // We should wait until we receive one valid media status before considering the video
-            // unloaded. Otherwise, the first call to seek or play will reload the video.
-            // See b/144325733.
-            mLoaded = false;
-            mStreamPositionExtrapolator.clear();
-        }
-    }
-
-    private void onMediaCommandResult(Result result) {
-        // When multiple API calls are made in quick succession, "Results have already been set"
-        // IllegalStateExceptions might be thrown from GMS code. We prefer to catch the exception
-        // and noop it, than to crash. This might lead to some API calls never getting their
-        // onResult() called, so we should not rely on onResult() being called for every API call.
-        // See https://crbug.com/853923.
-        if (!result.getStatus().isSuccess()) {
-            Log.e(TAG, "Error when sending command. Status code: %d",
-                    result.getStatus().getStatusCode());
-        }
-    }
 }
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingMediaSource.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingMediaSource.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingMediaSource.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingMediaSource.java
@@ -13,8 +13,6 @@ import android.util.Base64;
 import androidx.annotation.Nullable;
 import androidx.mediarouter.media.MediaRouteSelector;
 
-import com.google.android.gms.cast.CastMediaControlIntent;
-
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.components.media_router.MediaSource;
@@ -84,9 +82,7 @@ public class RemotingMediaSource implements MediaSource {
      */
     @Override
     public MediaRouteSelector buildRouteSelector() {
-        return new MediaRouteSelector.Builder()
-                .addControlCategory(CastMediaControlIntent.categoryForCast(getApplicationId()))
-                .build();
+        return null;
     }
 
     /**
@@ -113,7 +109,7 @@ public class RemotingMediaSource implements MediaSource {
 
             sApplicationId = (customAppId != null && !customAppId.isEmpty())
                     ? customAppId
-                    : CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID;
+                    :  "CC1AD845"; /*DEFAULT_MEDIA_RECEIVER_APPLICATION_ID*/
         }
 
         return sApplicationId;
diff --git a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingSessionController.java b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingSessionController.java
--- a/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingSessionController.java
+++ b/components/media_router/browser/android/java/src/org/chromium/components/media_router/caf/remoting/RemotingSessionController.java
@@ -4,8 +4,6 @@
 
 package org.chromium.components.media_router.caf.remoting;
 
-import com.google.android.gms.cast.framework.CastSession;
-
 import org.chromium.base.Log;
 import org.chromium.components.media_router.CastSessionUtil;
 import org.chromium.components.media_router.caf.BaseNotificationController;
@@ -33,19 +31,6 @@ public class RemotingSessionController extends BaseSessionController {
         sInstance = new WeakReference<>(this);
     }
 
-    @Override
-    public void attachToCastSession(CastSession session) {
-        super.attachToCastSession(session);
-
-        try {
-            getSession().setMessageReceivedCallbacks(
-                    CastSessionUtil.MEDIA_NAMESPACE, this::onMessageReceived);
-        } catch (Exception e) {
-            Log.e(TAG, "Failed to register namespace listener for %s",
-                    CastSessionUtil.MEDIA_NAMESPACE, e);
-        }
-    }
-
     @Override
     public void onSessionStarted() {
         super.onSessionStarted();
@@ -53,17 +38,6 @@ public class RemotingSessionController extends BaseSessionController {
         mFlingingControllerAdapter = new FlingingControllerAdapter(this, source.getMediaUrl());
     }
 
-    @Override
-    protected void onStatusUpdated() {
-        mFlingingControllerAdapter.onStatusUpdated();
-        super.onStatusUpdated();
-    }
-
-    @Override
-    public FlingingControllerAdapter getFlingingController() {
-        return mFlingingControllerAdapter;
-    }
-
     @Override
     public BaseNotificationController getNotificationController() {
         return mNotificationController;
diff --git a/components/media_router/test/android/cast_emulator/BUILD.gn b/components/media_router/test/android/cast_emulator/BUILD.gn
--- a/components/media_router/test/android/cast_emulator/BUILD.gn
+++ b/components/media_router/test/android/cast_emulator/BUILD.gn
@@ -20,7 +20,6 @@ android_library("cast_emulator_java") {
     "src/org/chromium/components/media_router/cast_emulator/router/DummyRoutePublisher.java",
   ]
   deps = [
-    "$google_play_services_package:google_play_services_cast_java",
     "//base:base_java",
     "//third_party/android_deps:android_support_v7_appcompat_java",
     "//third_party/androidx:androidx_mediarouter_mediarouter_java",
diff --git a/components/module_installer/android/BUILD.gn b/components/module_installer/android/BUILD.gn
--- a/components/module_installer/android/BUILD.gn
+++ b/components/module_installer/android/BUILD.gn
@@ -34,7 +34,6 @@ android_library("module_installer_java") {
   deps = [
     "//base:base_java",
     "//components/crash/android:java",
-    "//third_party/android_deps:com_google_android_play_core_java",
     "//third_party/androidx:androidx_annotation_annotation_java",
   ]
 
@@ -58,7 +57,6 @@ junit_binary("module_installer_junit_tests") {
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:base_junit_test_support",
-    "//third_party/android_deps:com_google_android_play_core_java",
     "//third_party/hamcrest:hamcrest_java",
   ]
 }
diff --git a/components/signin/public/android/BUILD.gn b/components/signin/public/android/BUILD.gn
--- a/components/signin/public/android/BUILD.gn
+++ b/components/signin/public/android/BUILD.gn
@@ -2,8 +2,6 @@ import("//build/config/android/rules.gni")
 
 android_library("java") {
   deps = [
-    "$google_play_services_package:google_play_services_auth_base_java",
-    "$google_play_services_package:google_play_services_base_java",
     "//base:base_java",
     "//components/externalauth/android:java",
     "//net/android:net_java",
@@ -27,7 +25,6 @@ android_library("java") {
     "java/src/org/chromium/components/signin/AccountManagerFacade.java",
     "java/src/org/chromium/components/signin/AccountManagerFacadeImpl.java",
     "java/src/org/chromium/components/signin/AccountManagerFacadeProvider.java",
-    "java/src/org/chromium/components/signin/AccountRenameChecker.java",
     "java/src/org/chromium/components/signin/AccountRestrictionPatternReceiver.java",
     "java/src/org/chromium/components/signin/AccountUtils.java",
     "java/src/org/chromium/components/signin/AccountsChangeObserver.java",
@@ -161,7 +158,6 @@ java_library("junit") {
   deps = [
     ":java",
     ":signin_java_test_support",
-    "$google_play_services_package:google_play_services_auth_base_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base:base_junit_test_support",
diff --git a/components/webauthn/android/BUILD.gn b/components/webauthn/android/BUILD.gn
--- a/components/webauthn/android/BUILD.gn
+++ b/components/webauthn/android/BUILD.gn
@@ -6,7 +6,6 @@ import("//build/config/android/rules.gni")
 
 generate_jni("jni_headers") {
   sources = [
-    "java/src/org/chromium/components/webauthn/Fido2Api.java",
     "java/src/org/chromium/components/webauthn/InternalAuthenticator.java",
   ]
 }
@@ -15,11 +14,6 @@ android_library("java") {
   sources = [
     "java/src/org/chromium/components/webauthn/AuthenticatorFactory.java",
     "java/src/org/chromium/components/webauthn/AuthenticatorImpl.java",
-    "java/src/org/chromium/components/webauthn/Fido2Api.java",
-    "java/src/org/chromium/components/webauthn/Fido2ApiCall.java",
-    "java/src/org/chromium/components/webauthn/Fido2ApiHandler.java",
-    "java/src/org/chromium/components/webauthn/Fido2CredentialRequest.java",
-    "java/src/org/chromium/components/webauthn/FidoErrorResponseCallback.java",
     "java/src/org/chromium/components/webauthn/GetAssertionResponseCallback.java",
     "java/src/org/chromium/components/webauthn/InternalAuthenticator.java",
     "java/src/org/chromium/components/webauthn/IsUvpaaResponseCallback.java",
@@ -29,9 +23,6 @@ android_library("java") {
   ]
   annotation_processor_deps = [ "//base/android/jni_generator:jni_processor" ]
   deps = [
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_tasks_java",
     "//base:base_java",
     "//base:jni_java",
     "//components/externalauth/android:java",
@@ -65,7 +56,6 @@ android_library("test_support_java") {
 
 source_set("android") {
   sources = [
-    "fido2api_native_android.cc",
     "internal_authenticator_android.cc",
     "internal_authenticator_android.h",
   ]
diff --git a/components/webauthn/android/java/src/org/chromium/components/webauthn/AuthenticatorImpl.java b/components/webauthn/android/java/src/org/chromium/components/webauthn/AuthenticatorImpl.java
--- a/components/webauthn/android/java/src/org/chromium/components/webauthn/AuthenticatorImpl.java
+++ b/components/webauthn/android/java/src/org/chromium/components/webauthn/AuthenticatorImpl.java
@@ -116,18 +116,7 @@ public final class AuthenticatorImpl implements Authenticator {
 
         mMakeCredentialCallback = callback;
         mIsOperationPending = true;
-        Context context = ContextUtils.getApplicationContext();
-        if (PackageUtils.getPackageVersion(context, GMSCORE_PACKAGE_NAME)
-                < Fido2ApiHandler.GMSCORE_MIN_VERSION) {
             onError(AuthenticatorStatus.NOT_IMPLEMENTED);
-            return;
-        }
-
-        Fido2ApiHandler.getInstance().makeCredential(options, mIntentSender, mRenderFrameHost,
-                mOrigin, mSupportLevel,
-                (status, response)
-                        -> onRegisterResponse(status, response),
-                status -> onError(status));
     }
 
     @Override
@@ -140,17 +129,7 @@ public final class AuthenticatorImpl implements Authenticator {
 
         mGetAssertionCallback = callback;
         mIsOperationPending = true;
-        Context context = ContextUtils.getApplicationContext();
-
-        if (PackageUtils.getPackageVersion(context, GMSCORE_PACKAGE_NAME)
-                < Fido2ApiHandler.GMSCORE_MIN_VERSION) {
             onError(AuthenticatorStatus.NOT_IMPLEMENTED);
-            return;
-        }
-
-        Fido2ApiHandler.getInstance().getAssertion(options, mIntentSender, mRenderFrameHost,
-                mOrigin, mPayment, mSupportLevel,
-                (status, response) -> onSignResponse(status, response), status -> onError(status));
     }
 
     @Override
@@ -170,16 +149,7 @@ public final class AuthenticatorImpl implements Authenticator {
             return;
         }
 
-        if (PackageUtils.getPackageVersion(context, GMSCORE_PACKAGE_NAME)
-                < Fido2ApiHandler.GMSCORE_MIN_VERSION) {
             decoratedCallback.call(false);
-            return;
-        }
-
-        mIsUserVerifyingPlatformAuthenticatorAvailableCallbackQueue.add(decoratedCallback);
-        Fido2ApiHandler.getInstance().isUserVerifyingPlatformAuthenticatorAvailable(mIntentSender,
-                mRenderFrameHost, mSupportLevel,
-                isUvpaa -> onIsUserVerifyingPlatformAuthenticatorAvailableResponse(isUvpaa));
     }
 
     @Override
diff --git a/content/browser/push_messaging/push_messaging_manager.cc b/content/browser/push_messaging/push_messaging_manager.cc
--- a/content/browser/push_messaging/push_messaging_manager.cc
+++ b/content/browser/push_messaging/push_messaging_manager.cc
@@ -787,7 +787,7 @@ void PushMessagingManager::GetSubscriptionInfo(
 }
 
 PushMessagingService* PushMessagingManager::GetService() {
-  return render_process_host_.GetBrowserContext()->GetPushMessagingService();
+  return nullptr;
 }
 
 }  // namespace content
diff --git a/content/public/android/BUILD.gn b/content/public/android/BUILD.gn
--- a/content/public/android/BUILD.gn
+++ b/content/public/android/BUILD.gn
@@ -136,10 +136,6 @@ android_library("content_main_dex_java") {
 android_library("content_full_java") {
   deps = [
     ":content_main_dex_java",
-    "$google_play_services_package:google_play_services_auth_api_phone_java",
-    "$google_play_services_package:google_play_services_base_java",
-    "$google_play_services_package:google_play_services_basement_java",
-    "$google_play_services_package:google_play_services_tasks_java",
     "//base:base_java",
     "//build:chromeos_buildflags",
     "//components/download/public/common:public_java",
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -1093,8 +1093,8 @@ const base::Feature kWebAssemblyTrapHandler {
 // Controls whether CTAP2 devices can communicate via the WebAuthentication API
 // using pairingless BLE protocol.
 // https://w3c.github.io/webauthn
-const base::Feature kWebAuthCable{"WebAuthenticationCable",
-                                  base::FEATURE_ENABLED_BY_DEFAULT};
+const base::Feature kWebAuthCable{"WebAuthenticationCable",          // disabled in Bromite
+                                  base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Controls whether WebAuthn conditional UI requests are supported.
 const base::Feature kWebAuthConditionalUI{"WebAuthenticationConditionalUI",
diff --git a/content/test/BUILD.gn b/content/test/BUILD.gn
--- a/content/test/BUILD.gn
+++ b/content/test/BUILD.gn
@@ -2960,10 +2960,6 @@ if (is_android) {
     testonly = true
     sources = content_java_sources_needing_jni
     deps = [
-      "$google_play_services_package:google_play_services_auth_api_phone_java",
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_tasks_java",
       "//base:base_java",
       "//content/public/android:content_java",
       "//ui/android:ui_full_java",
diff --git a/device/BUILD.gn b/device/BUILD.gn
--- a/device/BUILD.gn
+++ b/device/BUILD.gn
@@ -452,9 +452,6 @@ if (is_android) {
       "gamepad/android/junit/src/org/chromium/device/gamepad/GamepadMappingsTest.java",
     ]
     deps = [
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_location_java",
       "//base:base_java",
       "//base:base_java_test_support",
       "//base:base_junit_test_support",
diff --git a/device/fido/features.cc b/device/fido/features.cc
--- a/device/fido/features.cc
+++ b/device/fido/features.cc
@@ -22,8 +22,8 @@ const base::Feature kWebAuthUseNativeWinApi{"WebAuthenticationUseNativeWinApi",
 extern const base::Feature kWebAuthCableSecondFactor{
     "WebAuthenticationCableSecondFactor", base::FEATURE_ENABLED_BY_DEFAULT};
 
-extern const base::Feature kWebAuthPhoneSupport{
-    "WebAuthenticationPhoneSupport", base::FEATURE_ENABLED_BY_DEFAULT};
+extern const base::Feature kWebAuthPhoneSupport{                          // disabled by default in Bromite
+    "WebAuthenticationPhoneSupport", base::FEATURE_DISABLED_BY_DEFAULT};  // ^
 
 extern const base::Feature kWebAuthCableDisco{
     "WebAuthenticationCableDisco", base::FEATURE_DISABLED_BY_DEFAULT};
diff --git a/remoting/android/client_java_tmpl.gni b/remoting/android/client_java_tmpl.gni
--- a/remoting/android/client_java_tmpl.gni
+++ b/remoting/android/client_java_tmpl.gni
@@ -104,9 +104,6 @@ template("remoting_android_client_java_tmpl") {
 
     if (defined(invoker.play_services_package)) {
       deps += [
-        "${invoker.play_services_package}:google_play_services_auth_base_java",
-        "${invoker.play_services_package}:google_play_services_base_java",
-        "${invoker.play_services_package}:google_play_services_basement_java",
       ]
     }
 
diff --git a/services/BUILD.gn b/services/BUILD.gn
--- a/services/BUILD.gn
+++ b/services/BUILD.gn
@@ -117,11 +117,6 @@ if (is_android) {
       "shape_detection/android/junit/src/org/chromium/shape_detection/BitmapUtilsTest.java",
     ]
     deps = [
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_location_java",
-      "$google_play_services_package:google_play_services_vision_common_java",
-      "$google_play_services_package:google_play_services_vision_java",
       "//base:base_java",
       "//base:base_java_test_support",
       "//base:base_junit_test_support",
@@ -150,10 +145,6 @@ if (is_android) {
       "shape_detection/android/javatests/src/org/chromium/shape_detection/TextDetectionImplTest.java",
     ]
     deps = [
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_vision_common_java",
-      "$google_play_services_package:google_play_services_vision_java",
       "//base:base_java",
       "//base:base_java_test_support",
       "//mojo/public/java:base_java",
diff --git a/services/device/geolocation/BUILD.gn b/services/device/geolocation/BUILD.gn
--- a/services/device/geolocation/BUILD.gn
+++ b/services/device/geolocation/BUILD.gn
@@ -163,9 +163,6 @@ if (is_android) {
 
     deps = [
       ":geolocation_jni_headers",
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_location_java",
       "//base:base_java",
       "//components/location/android:location_java",
       "//services/device/public/java:geolocation_java",
diff --git a/services/shape_detection/BUILD.gn b/services/shape_detection/BUILD.gn
--- a/services/shape_detection/BUILD.gn
+++ b/services/shape_detection/BUILD.gn
@@ -115,10 +115,6 @@ if (is_android) {
     ]
 
     deps = [
-      "$google_play_services_package:google_play_services_base_java",
-      "$google_play_services_package:google_play_services_basement_java",
-      "$google_play_services_package:google_play_services_vision_common_java",
-      "$google_play_services_package:google_play_services_vision_java",
       "//base:base_java",
       "//mojo/public/java:base_java",
       "//mojo/public/java:bindings_java",
diff --git a/third_party/android_deps/BUILD.gn b/third_party/android_deps/BUILD.gn
--- a/third_party/android_deps/BUILD.gn
+++ b/third_party/android_deps/BUILD.gn
@@ -68,7 +68,6 @@ if (!limit_android_deps) {
       ":org_robolectric_shadowapi_java",
       ":org_robolectric_shadows_framework_java",
       ":org_robolectric_shadows_multidex_java",
-      ":org_robolectric_shadows_playservices_java",
       ":org_robolectric_utils_java",
       ":org_robolectric_utils_reflector_java",
 
@@ -87,7 +86,7 @@ if (!limit_android_deps) {
 
   android_library("chromium_play_services_availability_java") {
     sources = [ "util/org/chromium/gms/ChromiumPlayServicesAvailability.java" ]
-    deps = [ "$google_play_services_package:google_play_services_base_java" ]
+    deps = [ ]
   }
 
   android_library("chromium_play_services_availability_shadows_java") {
@@ -987,210 +986,6 @@ if (!limit_android_deps) {
     resource_overlay = true
   }
 
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_auth_java") {
-    aar_path = "libs/com_google_android_gms_play_services_auth/play-services-auth-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_auth/com_google_android_gms_play_services_auth.info"
-    deps = [
-      ":google_play_services_auth_api_phone_java",
-      ":google_play_services_auth_base_java",
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_fragment_fragment_java",
-      "//third_party/androidx:androidx_loader_loader_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_auth_api_phone_java") {
-    aar_path = "libs/com_google_android_gms_play_services_auth_api_phone/play-services-auth-api-phone-17.5.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_auth_api_phone/com_google_android_gms_play_services_auth_api_phone.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_auth_base_java") {
-    aar_path = "libs/com_google_android_gms_play_services_auth_base/play-services-auth-base-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_auth_base/com_google_android_gms_play_services_auth_base.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_base_java") {
-    aar_path = "libs/com_google_android_gms_play_services_base/play-services-base-17.5.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_base/com_google_android_gms_play_services_base.info"
-    deps = [
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-      "//third_party/androidx:androidx_fragment_fragment_java",
-    ]
-    bytecode_rewriter_target =
-        "//build/android/bytecode:fragment_activity_replacer"
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_basement_java") {
-    aar_path = "libs/com_google_android_gms_play_services_basement/play-services-basement-17.5.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_basement/com_google_android_gms_play_services_basement.info"
-    deps = [
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-      "//third_party/androidx:androidx_fragment_fragment_java",
-    ]
-
-    jar_excluded_patterns = []
-    if (!enable_java_asserts) {
-      # Omit the file since we use our own copy.
-      jar_excluded_patterns +=
-          [ "com/google/android/gms/common/internal/Preconditions.class" ]
-      deps += [ "//third_party/android_deps/local_modifications/preconditions:gms_stub_preconditions_java" ]
-    }
-
-    # https://crbug.com/989505
-    jar_excluded_patterns += [ "META-INF/proguard/*" ]
-    input_jars_paths = [ "$android_sdk/optional/org.apache.http.legacy.jar" ]
-    bytecode_rewriter_target =
-        "//build/android/bytecode:fragment_activity_replacer"
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_cast_java") {
-    aar_path = "libs/com_google_android_gms_play_services_cast/play-services-cast-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_cast/com_google_android_gms_play_services_cast.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_flags_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_core_core_java",
-      "//third_party/androidx:androidx_mediarouter_mediarouter_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_cast_framework_java") {
-    aar_path = "libs/com_google_android_gms_play_services_cast_framework/play-services-cast-framework-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_cast_framework/com_google_android_gms_play_services_cast_framework.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_cast_java",
-      "//third_party/androidx:androidx_appcompat_appcompat_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-      "//third_party/androidx:androidx_fragment_fragment_java",
-      "//third_party/androidx:androidx_media_media_java",
-      "//third_party/androidx:androidx_mediarouter_mediarouter_java",
-      "//third_party/androidx:androidx_recyclerview_recyclerview_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_fido_java") {
-    aar_path = "libs/com_google_android_gms_play_services_fido/play-services-fido-19.0.0-beta.aar"
-    info_path = "libs/com_google_android_gms_play_services_fido/com_google_android_gms_play_services_fido.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_gcm_java") {
-    aar_path = "libs/com_google_android_gms_play_services_gcm/play-services-gcm-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_gcm/com_google_android_gms_play_services_gcm.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_iid_java",
-      ":google_play_services_stats_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-      "//third_party/androidx:androidx_legacy_legacy_support_core_utils_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_iid_java") {
-    aar_path = "libs/com_google_android_gms_play_services_iid/play-services-iid-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_iid/com_google_android_gms_play_services_iid.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_stats_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_instantapps_java") {
-    aar_path = "libs/com_google_android_gms_play_services_instantapps/play-services-instantapps-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_instantapps/com_google_android_gms_play_services_instantapps.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_location_java") {
-    aar_path = "libs/com_google_android_gms_play_services_location/play-services-location-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_location/com_google_android_gms_play_services_location.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_places_placereport_java",
-      ":google_play_services_tasks_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_tasks_java") {
-    aar_path = "libs/com_google_android_gms_play_services_tasks/play-services-tasks-17.2.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_tasks/com_google_android_gms_play_services_tasks.info"
-    deps = [ ":google_play_services_basement_java" ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_vision_java") {
-    aar_path = "libs/com_google_android_gms_play_services_vision/play-services-vision-18.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_vision/com_google_android_gms_play_services_vision.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_vision_common_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_vision_common_java") {
-    aar_path = "libs/com_google_android_gms_play_services_vision_common/play-services-vision-common-18.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_vision_common/com_google_android_gms_play_services_vision_common.info"
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_clearcut_java",
-      ":google_play_services_flags_java",
-      ":google_play_services_phenotype_java",
-    ]
-  }
-
   # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
   android_aar_prebuilt("com_google_android_material_material_java") {
     aar_path =
@@ -1236,60 +1031,6 @@ if (!limit_android_deps) {
     ]
   }
 
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("com_google_android_play_core_java") {
-    aar_path = "libs/com_google_android_play_core/core-1.10.0.aar"
-    info_path =
-        "libs/com_google_android_play_core/com_google_android_play_core.info"
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_iid_java") {
-    aar_path = "libs/com_google_firebase_firebase_iid/firebase-iid-21.0.1.aar"
-    info_path = "libs/com_google_firebase_firebase_iid/com_google_firebase_firebase_iid.info"
-    deps = [
-      ":google_firebase_firebase_common_java",
-      ":google_firebase_firebase_components_java",
-      ":google_firebase_firebase_iid_interop_java",
-      ":google_firebase_firebase_installations_interop_java",
-      ":google_firebase_firebase_installations_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_cloud_messaging_java",
-      ":google_play_services_stats_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-      "//third_party/androidx:androidx_legacy_legacy_support_core_utils_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_messaging_java") {
-    aar_path = "libs/com_google_firebase_firebase_messaging/firebase-messaging-21.0.1.aar"
-    info_path = "libs/com_google_firebase_firebase_messaging/com_google_firebase_firebase_messaging.info"
-    deps = [
-      ":google_android_datatransport_transport_api_java",
-      ":google_firebase_firebase_common_java",
-      ":google_firebase_firebase_components_java",
-      ":google_firebase_firebase_encoders_java",
-      ":google_firebase_firebase_encoders_json_java",
-      ":google_firebase_firebase_iid_java",
-      ":google_firebase_firebase_installations_interop_java",
-      ":google_firebase_firebase_installations_java",
-      ":google_firebase_firebase_measurement_connector_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_cloud_messaging_java",
-      ":google_play_services_stats_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_collection_collection_java",
-      "//third_party/androidx:androidx_core_core_java",
-    ]
-
-    # We removed the datatransport dependency to reduce binary size.
-    # The library works without it as it's only used for logging.
-    enable_bytecode_checks = false
-  }
-
   # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
   java_prebuilt("com_google_flatbuffers_flatbuffers_java_java") {
     jar_path = "libs/com_google_flatbuffers_flatbuffers_java/flatbuffers-java-2.0.3.jar"
@@ -1461,19 +1202,6 @@ if (!limit_android_deps) {
     deps += [ ":com_android_support_multidex_java" ]
   }
 
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  java_prebuilt("org_robolectric_shadows_playservices_java") {
-    jar_path = "libs/org_robolectric_shadows_playservices/shadows-playservices-4.7.3.jar"
-    output_name = "org_robolectric_shadows_playservices"
-    enable_bytecode_checks = false
-    testonly = true
-    deps = [
-      ":com_google_guava_guava_java",
-      ":org_robolectric_annotations_java",
-    ]
-    bypass_platform_checks = true
-  }
-
   # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
   java_prebuilt("org_robolectric_utils_java") {
     jar_path = "libs/org_robolectric_utils/utils-4.7.3.jar"
@@ -1820,272 +1548,6 @@ if (!limit_android_deps) {
     deps = [ "//third_party/androidx:androidx_annotation_annotation_java" ]
   }
 
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_clearcut_java") {
-    aar_path = "libs/com_google_android_gms_play_services_clearcut/play-services-clearcut-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_clearcut/com_google_android_gms_play_services_clearcut.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_phenotype_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_core_core_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_cloud_messaging_java") {
-    aar_path = "libs/com_google_android_gms_play_services_cloud_messaging/play-services-cloud-messaging-16.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_cloud_messaging/com_google_android_gms_play_services_cloud_messaging.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_flags_java") {
-    aar_path = "libs/com_google_android_gms_play_services_flags/play-services-flags-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_flags/com_google_android_gms_play_services_flags.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_phenotype_java") {
-    aar_path = "libs/com_google_android_gms_play_services_phenotype/play-services-phenotype-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_phenotype/com_google_android_gms_play_services_phenotype.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-      "//third_party/androidx:androidx_core_core_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_places_placereport_java") {
-    aar_path = "libs/com_google_android_gms_play_services_places_placereport/play-services-places-placereport-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_places_placereport/com_google_android_gms_play_services_places_placereport.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [ ":google_play_services_basement_java" ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_play_services_stats_java") {
-    aar_path = "libs/com_google_android_gms_play_services_stats/play-services-stats-17.0.0.aar"
-    info_path = "libs/com_google_android_gms_play_services_stats/com_google_android_gms_play_services_stats.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_play_services_basement_java",
-      "//third_party/androidx:androidx_legacy_legacy_support_core_utils_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  java_prebuilt("google_firebase_firebase_annotations_java") {
-    jar_path = "libs/com_google_firebase_firebase_annotations/firebase-annotations-16.0.0.jar"
-    output_name = "com_google_firebase_firebase_annotations"
-    supports_android = true
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_common_java") {
-    aar_path =
-        "libs/com_google_firebase_firebase_common/firebase-common-19.5.0.aar"
-    info_path = "libs/com_google_firebase_firebase_common/com_google_firebase_firebase_common.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_firebase_firebase_components_java",
-      ":google_play_services_basement_java",
-      ":google_play_services_tasks_java",
-    ]
-
-    # Ignore missing kotlin.KotlinVersion definition in
-    # com.google.firebase.platforminfo.KotlinDetector.
-    enable_bytecode_checks = false
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_components_java") {
-    aar_path = "libs/com_google_firebase_firebase_components/firebase-components-16.1.0.aar"
-    info_path = "libs/com_google_firebase_firebase_components/com_google_firebase_firebase_components.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_firebase_firebase_annotations_java",
-      "//third_party/androidx:androidx_annotation_annotation_java",
-    ]
-
-    # Can't find com.google.firebase.components.Component$ComponentType.
-    enable_bytecode_checks = false
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  java_prebuilt("google_firebase_firebase_encoders_java") {
-    jar_path = "libs/com_google_firebase_firebase_encoders/firebase-encoders-16.1.0.jar"
-    output_name = "com_google_firebase_firebase_encoders"
-    supports_android = true
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [ "//third_party/androidx:androidx_annotation_annotation_java" ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_encoders_json_java") {
-    aar_path = "libs/com_google_firebase_firebase_encoders_json/firebase-encoders-json-17.1.0.aar"
-    info_path = "libs/com_google_firebase_firebase_encoders_json/com_google_firebase_firebase_encoders_json.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_firebase_firebase_encoders_java",
-      "//third_party/androidx:androidx_annotation_annotation_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_iid_interop_java") {
-    aar_path = "libs/com_google_firebase_firebase_iid_interop/firebase-iid-interop-17.0.0.aar"
-    info_path = "libs/com_google_firebase_firebase_iid_interop/com_google_firebase_firebase_iid_interop.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_play_services_base_java",
-      ":google_play_services_basement_java",
-    ]
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_installations_java") {
-    aar_path = "libs/com_google_firebase_firebase_installations/firebase-installations-16.3.5.aar"
-    info_path = "libs/com_google_firebase_firebase_installations/com_google_firebase_firebase_installations.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_firebase_firebase_common_java",
-      ":google_firebase_firebase_components_java",
-      ":google_firebase_firebase_installations_interop_java",
-      ":google_play_services_tasks_java",
-    ]
-
-    # Can't find com.google.auto.value.AutoValue$Builder.
-    enable_bytecode_checks = false
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_installations_interop_java") {
-    aar_path = "libs/com_google_firebase_firebase_installations_interop/firebase-installations-interop-16.0.1.aar"
-    info_path = "libs/com_google_firebase_firebase_installations_interop/com_google_firebase_firebase_installations_interop.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [
-      ":google_firebase_firebase_annotations_java",
-      ":google_play_services_tasks_java",
-    ]
-
-    # Can't find com.google.auto.value.AutoValue$Builder.
-    enable_bytecode_checks = false
-  }
-
-  # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
-  android_aar_prebuilt("google_firebase_firebase_measurement_connector_java") {
-    aar_path = "libs/com_google_firebase_firebase_measurement_connector/firebase-measurement-connector-18.0.0.aar"
-    info_path = "libs/com_google_firebase_firebase_measurement_connector/com_google_firebase_firebase_measurement_connector.info"
-
-    # To remove visibility constraint, add this dependency to
-    # //third_party/android_deps/build.gradle.
-    visibility = [
-      ":*",
-      "//third_party/androidx:*",
-    ]
-    deps = [ ":google_play_services_basement_java" ]
-  }
-
   # This is generated, do not edit. Update BuildConfigGenerator.groovy instead.
   java_prebuilt("com_squareup_javawriter_java") {
     jar_path = "libs/com_squareup_javawriter/javawriter-2.1.1.jar"
diff --git a/third_party/android_deps/local_modifications/preconditions/javatests/BUILD.gn b/third_party/android_deps/local_modifications/preconditions/javatests/BUILD.gn
--- a/third_party/android_deps/local_modifications/preconditions/javatests/BUILD.gn
+++ b/third_party/android_deps/local_modifications/preconditions/javatests/BUILD.gn
@@ -8,7 +8,6 @@ android_library("javatests") {
   testonly = true
   sources = [ "org/chromium/preconditions/PreconditionsTest.java" ]
   deps = [
-    "$google_play_services_package:google_play_services_basement_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//base/test:test_support_java",
diff --git a/third_party/android_deps/util/org/chromium/gms/ChromiumPlayServicesAvailability.java b/third_party/android_deps/util/org/chromium/gms/ChromiumPlayServicesAvailability.java
--- a/third_party/android_deps/util/org/chromium/gms/ChromiumPlayServicesAvailability.java
+++ b/third_party/android_deps/util/org/chromium/gms/ChromiumPlayServicesAvailability.java
@@ -5,9 +5,6 @@ package org.chromium.gms;
 
 import android.content.Context;
 
-import com.google.android.gms.common.ConnectionResult;
-import com.google.android.gms.common.GoogleApiAvailability;
-
 // Refer to go/doubledown-play-services#new-apis for more detail.
 public final class ChromiumPlayServicesAvailability {
     /**
@@ -30,9 +27,7 @@ public final class ChromiumPlayServicesAvailability {
      * PM/UX.
      */
     public static boolean isGooglePlayServicesAvailable(final Context context) {
-        return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(
-                       context, GMS_VERSION_NUMBER)
-                == ConnectionResult.SUCCESS;
+       return false;
     }
 
     /**
@@ -50,7 +45,6 @@ public final class ChromiumPlayServicesAvailability {
      * PM/UX.
      */
     public static int getGooglePlayServicesConnectionResult(final Context context) {
-        return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(
-                context, GMS_VERSION_NUMBER);
+        return 16; // API_UNAVAILABLE
     }
 }
--
2.25.1