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:
~NotificationObserver()24   virtual ~NotificationObserver() {}
25 };
26 
27 }  // namespace content
28 
29 #endif  // CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_
30