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      1 // Copyright 2014 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 BatteryDispatcher_h
      6 #define BatteryDispatcher_h
      7 
      8 #include "core/frame/PlatformEventDispatcher.h"
      9 #include "modules/battery/BatteryManager.h"
     10 #include "modules/battery/BatteryStatus.h"
     11 #include "public/platform/WebBatteryStatusListener.h"
     12 
     13 namespace blink {
     14 
     15 class WebBatteryStatus;
     16 
     17 class BatteryDispatcher FINAL : public PlatformEventDispatcher, public WebBatteryStatusListener {
     18 public:
     19     static BatteryDispatcher& instance();
     20     virtual ~BatteryDispatcher();
     21 
     22     BatteryStatus* latestData();
     23 
     24     // Inherited from WebBatteryStatusListener.
     25     virtual void updateBatteryStatus(const WebBatteryStatus&) OVERRIDE;
     26 
     27 private:
     28     BatteryDispatcher();
     29 
     30     // Inherited from PlatformEventDispatcher.
     31     virtual void startListening() OVERRIDE;
     32     virtual void stopListening() OVERRIDE;
     33 
     34     Persistent<BatteryStatus> m_batteryStatus;
     35 };
     36 
     37 } // namespace blink
     38 
     39 #endif // BatteryDispatcher_h
     40