Remove code for the old Web Notification permission-path.

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 3be2ac9196a51a9204bff034af11bcb55a4570bb..683c34ab909fa21a67f740af21ddec40c9c66269 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -300,8 +300,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
                                 IPC::Message* reply_msg);
   void OnRequestPlatformNotificationPermission(const GURL& origin,
                                                int request_id);
-  void OnRequestDesktopNotificationPermission(const GURL& origin,
-                                              int callback_id);
   void OnShowDesktopNotification(
       int notification_id,
       const ShowDesktopNotificationHostMsgParams& params);
@@ -329,8 +327,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
 
   void PlatformNotificationPermissionRequestDone(
       int request_id, blink::WebNotificationPermission permission);
-  void DesktopNotificationPermissionRequestDone(
-      int callback_context, blink::WebNotificationPermission permission);
 
   // For now, RenderFrameHosts indirectly keep RenderViewHosts alive via a
   // refcount that calls Shutdown when it reaches zero.  This allows each