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"
-
-namespace ash {
-
-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;
-};
-
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_POWER_POWER_SUPPLY_STATUS_H_