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/memory/ref_counted.h" 10#include "base/power_monitor/power_observer.h" 11#include "content/common/content_export.h" 12#include "content/public/browser/browser_thread.h" 13 14namespace IPC { 15 class Sender; 16} 17 18namespace content { 19 20// A class used to monitor the power state change and communicate it to child 21// processes via IPC. 22class CONTENT_EXPORT PowerMonitorMessageBroadcaster 23 : public base::PowerObserver { 24 public: 25 explicit PowerMonitorMessageBroadcaster(IPC::Sender* sender); 26 virtual ~PowerMonitorMessageBroadcaster(); 27 28 // Implement PowerObserver. 29 virtual void OnPowerStateChange(bool on_battery_power) OVERRIDE; 30 virtual void OnSuspend() OVERRIDE; 31 virtual void OnResume() OVERRIDE; 32 33 private: 34 IPC::Sender* sender_; 35 36 DISALLOW_COPY_AND_ASSIGN(PowerMonitorMessageBroadcaster); 37}; 38 39} // namespace base 40 41#endif // CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_