Migrates battery_status from content/renderer/ to WebKit/platform/

third_party/WebKit/Source/modules/battery/BatteryStatus.h

-// Copyright 2014 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 BatteryStatus_h
-#define BatteryStatus_h
-
-#include "platform/heap/Handle.h"
-#include "wtf/Forward.h"
-#include "wtf/RefCounted.h"
-
-namespace blink {
-
-class BatteryStatus final : public GarbageCollected<BatteryStatus> {
-public:
-    static BatteryStatus* create();
-    static BatteryStatus* create(bool charging, double chargingTime, double dischargingTime, double level);
-
-    bool charging() const { return m_charging; }
-    double chargingTime() const  { return m_chargingTime; }
-    double dischargingTime() const  { return m_dischargingTime; }
-    double level() const  { return m_level; }
-
-    DEFINE_INLINE_TRACE() { }
-
-private:
-    BatteryStatus();
-    BatteryStatus(bool charging, double chargingTime, double dischargingTime, double level);
-
-    bool m_charging;
-    double m_chargingTime;
-    double m_dischargingTime;
-    double m_level;
-};
-
-} // namespace blink
-
-#endif // BatteryStatus_h