[Android] Adding content settings provider for notification channels

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index f79724f4868ae5e2f68ce1a6fbf3dc39cbe39cae..60f1ae621a123bbb127242ab45863341c7a41bb8 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -746,6 +746,8 @@ split_static_library("browser") {
     "net_benchmarking.cc",
     "net_benchmarking.h",
     "notifications/alert_dispatcher_mac.h",
+    "notifications/android_settings_provider.cc",
+    "notifications/android_settings_provider.h",
     "notifications/desktop_notification_profile_util.cc",
     "notifications/desktop_notification_profile_util.h",
     "notifications/login_state_notification_blocker_chromeos.cc",
@@ -4210,6 +4212,7 @@ if (is_android) {
       "../android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java",
       "../android/java/src/org/chromium/chrome/browser/notifications/ActionInfo.java",
       "../android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java",
+      "../android/java/src/org/chromium/chrome/browser/notifications/NotificationSettingsBridge.java",
       "../android/java/src/org/chromium/chrome/browser/ntp/ContentSuggestionsNotificationHelper.java",
       "../android/java/src/org/chromium/chrome/browser/ntp/ForeignSessionHelper.java",
       "../android/java/src/org/chromium/chrome/browser/ntp/LogoBridge.java",