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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/DeviceEventDispatcherBase.h"
      9 #include "modules/battery/BatteryManager.h"
     10 #include "modules/battery/BatteryStatus.h"
     11 #include "public/platform/WebBatteryStatusListener.h"
     12 
     13 namespace blink {
     14 class WebBatteryStatus;
     15 }
     16 
     17 namespace WebCore {
     18 
     19 class BatteryDispatcher FINAL : public DeviceEventDispatcherBase, public blink::WebBatteryStatusListener {
     20 public:
     21     static BatteryDispatcher& instance();
     22     virtual ~BatteryDispatcher();
     23 
     24     BatteryStatus* latestData();
     25 
     26     // Inherited from blink::WebBatteryStatusListener.
     27     virtual void updateBatteryStatus(const blink::WebBatteryStatus&) OVERRIDE;
     28 
     29 private:
     30     BatteryDispatcher();
     31 
     32     // Inherited from DeviceEventDispatcherBase.
     33     virtual void startListening() OVERRIDE;
     34     virtual void stopListening() OVERRIDE;
     35 
     36     RefPtrWillBePersistent<BatteryStatus> m_batteryStatus;
     37 };
     38 
     39 }
     40 
     41 #endif // BatteryDispatcher_h
     42