Add support to Battery Status API in blink.

Source/modules/battery/NavigatorBattery.h

 /*
  *  Copyright (C) 2012 Samsung Electronics
+ *  Copyright (C) 2014 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Library General Public License for more details.
  *
  *  You should have received a copy of the GNU Library General Public License
  *  along with this library; see the file COPYING.LIB.  If not, write to
  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  *  Boston, MA 02110-1301, USA.
  */
 
-partial interface Navigator {
-    // FIXME: The contents of the pattern argument should be clamped.
-    // See https://code.google.com/p/chromium/issues/detail?id=310138
-    boolean vibrate(sequence<unsigned long> pattern);
-    boolean vibrate([Clamp] unsigned long time);
+#ifndef NavigatorBattery_h
+#define NavigatorBattery_h
+
+#include "core/frame/Navigator.h"
+#include "platform/Supplementable.h"
+
+namespace WebCore {
+
+class BatteryManager;
+class Navigator;
+class ScriptExecutionContext;
+
+class NavigatorBattery : public Supplement<Navigator>, DOMWindowProperty {
+public:
+    virtual ~NavigatorBattery();
+
+    static NavigatorBattery& from(Navigator&);
+
+    static BatteryManager* battery(Navigator&);
+    BatteryManager* battery();
+
+    BatteryManager* batteryManager();
+
+private:
+    NavigatorBattery(Frame*);
+    static const char* supplementName();
+
+    RefPtr<BatteryManager> m_batteryManager;
 };
+
+} // namespace WebCore
+
+#endif // NavigatorBattery_h
+
+