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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_COMMON_HI_RES_TIMER_MANAGER_H_
#define CONTENT_COMMON_HI_RES_TIMER_MANAGER_H_
#pragma once
#include "ui/base/system_monitor/system_monitor.h"
// Ensures that the Windows high resolution timer is only used
// when not running on battery power.
class HighResolutionTimerManager : public ui::SystemMonitor::PowerObserver {
public:
HighResolutionTimerManager();
virtual ~HighResolutionTimerManager();
// ui::SystemMonitor::PowerObserver:
virtual void OnPowerStateChange(bool on_battery_power);
private:
// Enable or disable the faster multimedia timer.
void UseHiResClock(bool use);
bool hi_res_clock_used_;
DISALLOW_COPY_AND_ASSIGN(HighResolutionTimerManager);
};
#endif // CONTENT_COMMON_HI_RES_TIMER_MANAGER_H_
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