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      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