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 CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_ 6 #define CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/power_monitor/power_observer.h" 10 #include "content/common/content_export.h" 11 12 namespace IPC { 13 class Sender; 14 } 15 16 namespace content { 17 18 // A class used to monitor the power state change and communicate it to child 19 // processes via IPC. 20 class CONTENT_EXPORT PowerMonitorMessageBroadcaster 21 : public base::PowerObserver { 22 public: 23 explicit PowerMonitorMessageBroadcaster(IPC::Sender* sender); 24 virtual ~PowerMonitorMessageBroadcaster(); 25 26 // Implement PowerObserver. 27 virtual void OnPowerStateChange(bool on_battery_power) OVERRIDE; 28 virtual void OnSuspend() OVERRIDE; 29 virtual void OnResume() OVERRIDE; 30 31 private: 32 IPC::Sender* sender_; 33 34 DISALLOW_COPY_AND_ASSIGN(PowerMonitorMessageBroadcaster); 35 }; 36 37 } // namespace content 38 39 #endif // CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_ 40