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
12namespace IPC {
13class Sender;
14}
15
16namespace content {
17
18// A class used to monitor the power state change and communicate it to child
19// processes via IPC.
20class 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  void Init();
32
33 private:
34  IPC::Sender* sender_;
35
36  DISALLOW_COPY_AND_ASSIGN(PowerMonitorMessageBroadcaster);
37};
38
39}  // namespace content
40
41#endif  // CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_
42