Created multi-process-friendly PowerMonitor interface.

content/browser/browser_main_loop.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/browser_main_loop.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/pending_task.h"
 #include "base/power_monitor/power_monitor.h"
+#include "base/power_monitor/power_monitor_device_source.h"
 #include "base/process/process_metrics.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/system_monitor/system_monitor.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/timer/hi_res_timer_manager.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/device_orientation/device_motion_service.h"
 #include "content/browser/download/save_file_manager.h"
 #include "content/browser/gamepad/gamepad_service.h"
@@ skipping 364 matching lines @@
     main_message_loop_.reset(new base::MessageLoop(base::MessageLoop::TYPE_UI));
 
   InitializeMainThread();
 
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:SystemMonitor")
     system_monitor_.reset(new base::SystemMonitor);
   }
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:PowerMonitor")
-    power_monitor_.reset(new base::PowerMonitor);
+    scoped_ptr<base::PowerMonitorSource> power_monitor_source(
+      new base::PowerMonitorDeviceSource());
+    power_monitor_.reset(new base::PowerMonitor(power_monitor_source.Pass()));
   }
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:HighResTimerManager")
     hi_res_timer_manager_.reset(new base::HighResolutionTimerManager);
   }
   {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:NetworkChangeNotifier")
     network_change_notifier_.reset(net::NetworkChangeNotifier::Create());
   }
 
@@ skipping 537 matching lines @@
   if (parameters_.ui_task)
     base::MessageLoopForUI::current()->PostTask(FROM_HERE,
                                                 *parameters_.ui_task);
 
   base::RunLoop run_loop;
   run_loop.Run();
 #endif
 }
 
 }  // namespace content