Move power_supply_status.* from src/ash to src/chromeos

ash/system/power/power_supply_status.h

 // 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.
 
 #ifndef ASH_SYSTEM_POWER_POWER_SUPPLY_STATUS_H_
 #define ASH_SYSTEM_POWER_POWER_SUPPLY_STATUS_H_
 
 #include <string>
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 
+#if defined(OS_CHROMEOS)
+#include "chromeos/dbus/power_supply_status.h"
+#endif
+
 namespace ash {
 
+#if defined(OS_CHROMEOS)
+typedef chromeos::PowerSupplyStatus PowerSupplyStatus;
+#else
+// Define local struct when not building for Chrome OS.
 struct ASH_EXPORT PowerSupplyStatus {
   bool line_power_on;
 
   bool battery_is_present;
   bool battery_is_full;
 
   // Time in seconds until the battery is empty or full, 0 for unknown.
   int64 battery_seconds_to_empty;
   int64 battery_seconds_to_full;
 
   double battery_percentage;
 
   PowerSupplyStatus();
   std::string ToString() const;
 };
+#endif  // defined(OS_CHROMEOS)
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_POWER_POWER_SUPPLY_STATUS_H_