DO NOT SUBMIT. Implement an XPCService for notifications.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index 1c26c3f29012af6f22a4709c98c11ea97376a6b7..eb01af5ca2e3767ce9a8a15723b4721d627208b8 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -444,6 +444,20 @@ if (is_win) {
     }
   }
 
+  bundle_data("chrome_framework_services") {
+    sources = [
+      "$root_out_dir/AlertNotificationService.xpc",
+    ]
+
+    outputs = [
+      "{{bundle_root_dir}}/XPCServices/{{source_file_part}}",
+    ]
+
+    public_deps = [
+      "//chrome/browser/ui/cocoa/notifications:alert_notification_xpc_service",
+    ]
+  }
+
   tweak_info_plist("chrome_app_plist") {
     info_plist = "app/app-Info.plist"
     _keystone_arg = "0"
@@ -781,7 +795,6 @@ if (is_win) {
     group("chrome_framework_plugins") {
     }
   }
-
   if (is_chrome_branded) {
     bundle_data("flash_player_plugin") {
       sources = [
@@ -956,6 +969,7 @@ if (is_win) {
       ":chrome_framework_locales",
       ":chrome_framework_plugins",
       ":chrome_framework_resources",
+      ":chrome_framework_services",
       ":flash_player_plugin",
       ":widevine_cdm_library",
       "//build/config/sanitizers:deps",