Use Mojo Permission Service when requesting Notifications permission.

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 595ce4e8c5c0ebf90ac000554dc695ab28b32e2f..d26151579bb878c4d9e0bbd88cb17c70f5c1ed33 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -67,7 +67,6 @@ struct ContextMenuParams;
 struct GlobalRequestID;
 struct Referrer;
 struct ResourceResponse;
-struct ShowDesktopNotificationHostMsgParams;
 struct TransitionLayerData;
 
 // Flag arguments for RenderFrameHost creation.
@@ -437,12 +436,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
                                 const base::string16& message,
                                 bool is_reload,
                                 IPC::Message* reply_msg);
-  void OnRequestPlatformNotificationPermission(const GURL& origin,
-                                               int request_id);
-  void OnShowDesktopNotification(
-      int notification_id,
-      const ShowDesktopNotificationHostMsgParams& params);
-  void OnCancelDesktopNotification(int notification_id);
   void OnTextSurroundingSelectionResponse(const base::string16& content,
                                           size_t start_offset,
                                           size_t end_offset);
@@ -479,8 +472,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // it will be used to kill processes that commit unauthorized URLs.
   bool CanCommitURL(const GURL& url);
 
-  void PlatformNotificationPermissionRequestDone(int request_id, bool granted);
-
   // Update the the singleton FrameAccessibility instance with a map
   // from accessibility node id to the frame routing id of a cross-process
   // iframe.