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Issue 10959020: SystemMonitor refactoring: move power state monitor into a separate class called PowerMonitor (Closed) Base URL: http://git.chromium.org/chromium/src.git@master
Patch Set: Use PowerMonitor instead of SystemMonitor in XXXMain function Created 7 years, 9 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/hi_res_timer_manager.h" 5 #include "base/hi_res_timer_manager.h"
6 6
7 #include "base/power_monitor/power_monitor.h"
7 #include "base/time.h" 8 #include "base/time.h"
8 9
9 HighResolutionTimerManager::HighResolutionTimerManager() 10 HighResolutionTimerManager::HighResolutionTimerManager()
10 : hi_res_clock_available_(false) { 11 : hi_res_clock_available_(false) {
11 base::SystemMonitor* system_monitor = base::SystemMonitor::Get(); 12 base::PowerMonitor* power_monitor = base::PowerMonitor::Get();
12 system_monitor->AddPowerObserver(this); 13 power_monitor->AddObserver(this);
13 UseHiResClock(!system_monitor->BatteryPower()); 14 UseHiResClock(!power_monitor->BatteryPower());
14 } 15 }
15 16
16 HighResolutionTimerManager::~HighResolutionTimerManager() { 17 HighResolutionTimerManager::~HighResolutionTimerManager() {
17 base::SystemMonitor::Get()->RemovePowerObserver(this); 18 base::PowerMonitor::Get()->RemoveObserver(this);
18 UseHiResClock(false); 19 UseHiResClock(false);
19 } 20 }
20 21
21 void HighResolutionTimerManager::OnPowerStateChange(bool on_battery_power) { 22 void HighResolutionTimerManager::OnPowerStateChange(bool on_battery_power) {
22 UseHiResClock(!on_battery_power); 23 UseHiResClock(!on_battery_power);
23 } 24 }
24 25
25 void HighResolutionTimerManager::UseHiResClock(bool use) { 26 void HighResolutionTimerManager::UseHiResClock(bool use) {
26 if (use == hi_res_clock_available_) 27 if (use == hi_res_clock_available_)
27 return; 28 return;
28 hi_res_clock_available_ = use; 29 hi_res_clock_available_ = use;
29 base::Time::EnableHighResolutionTimer(use); 30 base::Time::EnableHighResolutionTimer(use);
30 } 31 }
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