[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 d49c04d396b08976fe0f4b33d6467b470dc3ea99..223d2f141811759af1dd99f25ff4ee4866c3127d 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -760,6 +760,8 @@ split_static_library("browser") {
     "notifications/notification.h",
     "notifications/notification_common.cc",
     "notifications/notification_common.h",
+    "notifications/notification_content_settings_provider_android.cc",
+    "notifications/notification_content_settings_provider_android.h",
     "notifications/notification_delegate.h",
     "notifications/notification_display_service.h",
     "notifications/notification_display_service_factory.cc",
@@ -4216,6 +4218,7 @@ 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",