Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

content/child/notifications/notification_manager.h

Index: content/child/notifications/notification_manager.h
diff --git a/content/child/notifications/notification_manager.h b/content/child/notifications/notification_manager.h
index 32a5e4dd3f0d1fd2617e0c31035d538946d4fd17..6ba0fc8c54d9491fbc072634cc3569d05cb166a2 100644
--- a/content/child/notifications/notification_manager.h
+++ b/content/child/notifications/notification_manager.h
@@ -51,11 +51,11 @@ class NotificationManager : public blink::WebNotificationManager,
       const blink::WebNotificationData& notification_data,
       std::unique_ptr<blink::WebNotificationResources> notification_resources,
       blink::WebServiceWorkerRegistration* service_worker_registration,
-      blink::WebNotificationShowCallbacks* callbacks) override;
+      std::unique_ptr<blink::WebNotificationShowCallbacks> callbacks) override;
   void getNotifications(
       const blink::WebString& filter_tag,
       blink::WebServiceWorkerRegistration* service_worker_registration,
-      blink::WebNotificationGetCallbacks* callbacks) override;
+      std::unique_ptr<blink::WebNotificationGetCallbacks> callbacks) override;
   void close(blink::WebNotificationDelegate* delegate) override;
   void closePersistent(const blink::WebSecurityOrigin& origin,
                        const blink::WebString& tag,