1// Copyright (c) 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_CHILD_POWER_MONITOR_BROADCAST_SOURCE_H_ 6#define CONTENT_CHILD_POWER_MONITOR_BROADCAST_SOURCE_H_ 7 8#include "base/power_monitor/power_monitor_source.h" 9#include "content/common/content_export.h" 10#include "ipc/ipc_channel.h" 11 12namespace IPC { 13class MessageFilter; 14} 15 16namespace content { 17 18class PowerMessageFilter; 19 20// Receives Power Monitor IPC messages sent from the browser process and relays 21// them to the PowerMonitor of the current process. 22class CONTENT_EXPORT PowerMonitorBroadcastSource : 23 public base::PowerMonitorSource { 24 public: 25 explicit PowerMonitorBroadcastSource(); 26 virtual ~PowerMonitorBroadcastSource(); 27 28 IPC::MessageFilter* GetMessageFilter(); 29 30 private: 31 friend class PowerMessageFilter; 32 33 virtual bool IsOnBatteryPowerImpl() OVERRIDE; 34 35 void OnPowerStateChange(bool on_battery_power); 36 void OnSuspend(); 37 void OnResume(); 38 39 bool last_reported_battery_power_state_; 40 scoped_refptr<PowerMessageFilter> message_filter_; 41 42 DISALLOW_COPY_AND_ASSIGN(PowerMonitorBroadcastSource); 43}; 44 45} // namespace content 46 47#endif // CONTENT_CHILD_POWER_MONITOR_MESSAGE_FILTER_H_ 48