1// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_ 6#define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_ 7 8#include <string> 9 10#include "base/memory/ref_counted.h" 11#include "ui/message_center/notification_delegate.h" 12 13namespace content { 14class WebContents; 15} 16 17// Delegate for a notification. This class has two roles: to implement callback 18// methods for notification, and to provide an identity of the associated 19// notification. 20class NotificationDelegate : public message_center::NotificationDelegate { 21 public: 22 // Returns unique id of the notification. 23 virtual std::string id() const = 0; 24 25 // Returns the WebContents that generated the notification, or NULL. 26 virtual content::WebContents* GetWebContents() const = 0; 27 28 // Lets the delegate know that no more rendering will be necessary. 29 virtual void ReleaseRenderViewHost(); 30 31 protected: 32 virtual ~NotificationDelegate() {} 33}; 34 35#endif // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_ 36