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

ash/system/power/power_supply_status.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 "ash/system/power/power_supply_status.h"
-
-#include "base/format_macros.h"
-#include "base/stringprintf.h"
-
-namespace ash {
-
-PowerSupplyStatus::PowerSupplyStatus()
-    : line_power_on(false),
-      battery_is_present(false),
-      battery_is_full(false),
-      battery_seconds_to_empty(0),
-      battery_seconds_to_full(0),
-      battery_percentage(0) {
-}
-
-std::string PowerSupplyStatus::ToString() const {
-  std::string result;
-  base::StringAppendF(&result,
-                      "line_power_on = %s ",
-                      line_power_on ? "true" : "false");
-  base::StringAppendF(&result,
-                      "battery_is_present = %s ",
-                      battery_is_present ? "true" : "false");
-  base::StringAppendF(&result,
-                      "battery_is_full = %s ",
-                      battery_is_full ? "true" : "false");
-  base::StringAppendF(&result,
-                      "battery_percentage = %f ",
-                      battery_percentage);
-  base::StringAppendF(&result,
-                      "battery_seconds_to_empty = %"PRId64" ",
-                      battery_seconds_to_empty);
-  base::StringAppendF(&result,
-                      "battery_seconds_to_full = %"PRId64" ",
-                      battery_seconds_to_full);
-  return result;
-}
-
-}  // namespace ash