Implement notificationclose event

content/browser/notifications/notification_event_dispatcher_impl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_EVENT_DISPATCHER_IMPL_H_
 #define CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_EVENT_DISPATCHER_IMPL_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/singleton.h"
+#include "content/public/browser/notification_database_data.h"
 #include "content/public/browser/notification_event_dispatcher.h"
 
 namespace content {
 
 class NotificationEventDispatcherImpl : public NotificationEventDispatcher {
  public:
   // Returns the instance of the NotificationEventDispatcherImpl. Must be called
   // on the UI thread.
   static NotificationEventDispatcherImpl* GetInstance();
 
   // NotificationEventDispatcher implementation.
   void DispatchNotificationClickEvent(
       BrowserContext* browser_context,
       int64_t persistent_notification_id,
       const GURL& origin,
       int action_index,
-      const NotificationClickDispatchCompleteCallback&
-          dispatch_complete_callback) override;
+      const NotificationDispatchCompleteCallback& dispatch_complete_callback)
+      override;
+  void DispatchNotificationCloseEvent(
+      BrowserContext* browser_context,
+      int64_t persistent_notification_id,
+      const GURL& origin,
+      bool by_user,
+      const NotificationDispatchCompleteCallback& dispatch_complete_callback)
+      override;
 
  private:
   NotificationEventDispatcherImpl();
   ~NotificationEventDispatcherImpl() override;
 
   friend struct base::DefaultSingletonTraits<NotificationEventDispatcherImpl>;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationEventDispatcherImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_EVENT_DISPATCHER_IMPL_H_