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      1 // Copyright 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_SYSTEM_OBSERVER_H_
      6 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_SYSTEM_OBSERVER_H_
      7 
      8 #include "content/public/browser/notification_observer.h"
      9 #include "content/public/browser/notification_registrar.h"
     10 
     11 class NotificationUIManager;
     12 
     13 // The content::NotificationObserver observes system status change and sends
     14 // events to NotificationUIManager.
     15 class NotificationSystemObserver : public content::NotificationObserver {
     16  public:
     17   explicit NotificationSystemObserver(NotificationUIManager* ui_manager);
     18   virtual ~NotificationSystemObserver();
     19 
     20  protected:
     21   // content::NotificationObserver override.
     22   virtual void Observe(int type,
     23                        const content::NotificationSource& source,
     24                        const content::NotificationDetails& details) OVERRIDE;
     25 
     26  private:
     27   // Registrar for the other kind of notifications (event signaling).
     28   content::NotificationRegistrar registrar_;
     29   NotificationUIManager* ui_manager_;
     30 
     31   DISALLOW_COPY_AND_ASSIGN(NotificationSystemObserver);
     32 };
     33 
     34 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_SYSTEM_OBSERVER_H_
     35