Ladybird: Register RequestServer with the chrome's mach server on macOS

This ensures we register RequestServer with the appropriate mach server
name.

Ladybird/HelperProcess.cpp

@@ -176,12 +176,18 @@ ErrorOr<NonnullRefPtr<Protocol::RequestClient>> launch_request_server_process(Re
         arguments.append("--serenity-resource-root"sv);
         arguments.append(serenity_resource_root);
     }
+
     Vector<ByteString> certificate_args;
     for (auto const& certificate : certificates) {
         certificate_args.append(ByteString::formatted("--certificate={}", certificate));
         arguments.append(certificate_args.last().view());
     }
 
+    if (auto server = mach_server_name(); server.has_value()) {
+        arguments.append("--mach-server-name"sv);
+        arguments.append(server.value());
+    }
+
     return launch_generic_server_process<Protocol::RequestClient>(candidate_request_server_paths, "RequestServer"sv, move(arguments));
 }
 

Ladybird/RequestServer/main.cpp

@@ -20,6 +20,10 @@
 #include <RequestServer/HttpProtocol.h>
 #include <RequestServer/HttpsProtocol.h>
 
+#if defined(AK_OS_MACOS)
+#    include <LibCore/Platform/ProcessStatisticsMach.h>
+#endif
+
 ErrorOr<ByteString> find_certificates(StringView serenity_resource_root)
 {
     auto cert_path = ByteString::formatted("{}/ladybird/cacert.pem", serenity_resource_root);
@@ -34,10 +38,12 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     StringView serenity_resource_root;
     Vector<ByteString> certificates;
+    StringView mach_server_name;
 
     Core::ArgsParser args_parser;
     args_parser.add_option(certificates, "Path to a certificate file", "certificate", 'C', "certificate");
     args_parser.add_option(serenity_resource_root, "Absolute path to directory for serenity resources", "serenity-resource-root", 'r', "serenity-resource-root");
+    args_parser.add_option(mach_server_name, "Mach server name", "mach-server-name", 0, "mach_server_name");
     args_parser.parse(arguments);
 
     // Ensure the certificates are read out here.
@@ -48,6 +54,11 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     Core::EventLoop event_loop;
 
+#if defined(AK_OS_MACOS)
+    if (!mach_server_name.is_empty())
+        Core::Platform::register_with_mach_server(mach_server_name);
+#endif
+
     RequestServer::GeminiProtocol::install();
     RequestServer::HttpProtocol::install();
     RequestServer::HttpsProtocol::install();