1 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_ 6 #define CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_ 7 8 #include "content/common/content_export.h" 9 10 namespace content { 11 12 class NotificationDetails; 13 class NotificationSource; 14 15 // This is the base class for notification observers. When a matching 16 // notification is posted to the notification service, Observe is called. 17 class CONTENT_EXPORT NotificationObserver { 18 public: 19 virtual void Observe(int type, 20 const NotificationSource& source, 21 const NotificationDetails& details) = 0; 22 23 protected: 24 virtual ~NotificationObserver() {} 25 }; 26 27 } // namespace content 28 29 #endif // CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_ 30