Use Mojo Permission Service when requesting Notifications permission.

content/renderer/notification_permission_dispatcher.h

Index: content/renderer/notification_permission_dispatcher.h
diff --git a/content/renderer/notification_permission_dispatcher.h b/content/renderer/notification_permission_dispatcher.h
index c01b0632784ed66f1a5a857c8ca63f3769e9caaf..5c32693b18a7295e3a1fb12cbd14f7b3b9efddcd 100644
--- a/content/renderer/notification_permission_dispatcher.h
+++ b/content/renderer/notification_permission_dispatcher.h
@@ -6,9 +6,8 @@
 #define CONTENT_RENDERER_NOTIFICATION_PERMISSION_DISPATCHER_H_
 
 #include "base/id_map.h"
+#include "content/common/permission_service.mojom.h"
 #include "content/public/renderer/render_frame_observer.h"
-#include "ipc/ipc_message.h"
-#include "third_party/WebKit/public/platform/WebNotificationPermission.h"
 
 namespace blink {
 class WebNotificationPermissionCallback;
@@ -31,17 +30,16 @@ class NotificationPermissionDispatcher : public RenderFrameObserver {
       blink::WebNotificationPermissionCallback* callback);
 
  private:
-  // RenderFrameObserver implementation.
-  bool OnMessageReceived(const IPC::Message& message) override;
-
   void OnPermissionRequestComplete(
-      int request_id, blink::WebNotificationPermission result);
+      int request_id, PermissionStatus status);
 
   // Tracks the active notification permission requests. This class takes
   // ownership of the created WebNotificationPermissionCallback objects.
   IDMap<blink::WebNotificationPermissionCallback, IDMapOwnPointer>
       pending_requests_;
 
+  PermissionServicePtr permission_service_;
+
   DISALLOW_COPY_AND_ASSIGN(NotificationPermissionDispatcher);
 };