Meta: Port dd073b2711 to gn build

Author: https://github.com/ADKaster
Commit: https://github.com/SerenityOS/serenity/commit/2f16aa45b7
Pull-request: https://github.com/SerenityOS/serenity/pull/19911

Meta/gn/secondary/Meta/Lagom/Tools/CodeGenerators/LibWeb/BUILD.gn

@@ -12,6 +12,14 @@ lagom_tool("GenerateAriaRoles") {
   ]
 }
 
+lagom_tool("GenerateCSSEasingFunctions") {
+  sources = [ "GenerateCSSEasingFunctions.cpp" ]
+  deps = [
+    ":headers",
+    "//Userland/Libraries/LibMain",
+  ]
+}
+
 lagom_tool("GenerateCSSEnums") {
   sources = [ "GenerateCSSEnums.cpp" ]
   deps = [

Meta/gn/secondary/Userland/Libraries/LibWeb/BUILD.gn

@@ -79,6 +79,23 @@ compiled_action("generate_aria_roles") {
   ]
 }
 
+compiled_action("generate_css_easing_functions") {
+  tool = "//Meta/Lagom/Tools/CodeGenerators/LibWeb:GenerateCSSEasingFunctions"
+  inputs = [ "CSS/EasingFunctions.json" ]
+  outputs = [
+    "$target_gen_dir/CSS/EasingFunctions.h",
+    "$target_gen_dir/CSS/EasingFunctions.cpp",
+  ]
+  args = [
+    "-h",
+    rebase_path(outputs[0], root_build_dir),
+    "-c",
+    rebase_path(outputs[1], root_build_dir),
+    "-j",
+    rebase_path(inputs[0], root_build_dir),
+  ]
+}
+
 compiled_action("generate_css_enums") {
   tool = "//Meta/Lagom/Tools/CodeGenerators/LibWeb:GenerateCSSEnums"
   inputs = [ "CSS/Enums.json" ]
@@ -182,6 +199,7 @@ embed_as_string_view("generate_quirks_mode_stylesheet_source") {
 source_set("all_generated") {
   generated_deps = [
     ":generate_aria_roles",
+    ":generate_css_easing_functions",
     ":generate_css_enums",
     ":generate_css_media_feature_id",
     ":generate_css_property_id",

Meta/gn/secondary/Userland/Libraries/LibWeb/CSS/StyleValues/BUILD.gn

@@ -15,6 +15,7 @@ source_set("StyleValues") {
     "ConicGradientStyleValue.cpp",
     "ContentStyleValue.cpp",
     "DisplayStyleValue.cpp",
+    "EasingStyleValue.cpp",
     "EdgeStyleValue.cpp",
     "FilterValueListStyleValue.cpp",
     "FlexFlowStyleValue.cpp",