Initialize PowerMonitor on_power_battery intitial value for newly created processes.

content/browser/power_monitor_message_broadcaster.h

 // Copyright 2013 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_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_
 #define CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_
 
 #include "base/basictypes.h"
 #include "base/power_monitor/power_observer.h"
 #include "content/common/content_export.h"
@@ skipping 10 matching lines @@
     : public base::PowerObserver {
  public:
   explicit PowerMonitorMessageBroadcaster(IPC::Sender* sender);
   virtual ~PowerMonitorMessageBroadcaster();
 
   // Implement PowerObserver.
   virtual void OnPowerStateChange(bool on_battery_power) OVERRIDE;
   virtual void OnSuspend() OVERRIDE;
   virtual void OnResume() OVERRIDE;
 
+  void Init();
+
  private:
   IPC::Sender* sender_;
 
   DISALLOW_COPY_AND_ASSIGN(PowerMonitorMessageBroadcaster);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_POWER_MONITOR_MESSAGE_BROADCASTER_H_