Add support to Battery Status API in blink.

Source/modules/battery/NavigatorBattery.h

Index: Source/modules/battery/NavigatorBattery.h
diff --git a/Source/modules/vibration/NavigatorVibration.idl b/Source/modules/battery/NavigatorBattery.h
similarity index 53%
copy from Source/modules/vibration/NavigatorVibration.idl
copy to Source/modules/battery/NavigatorBattery.h
index 2c2c140706f3fd4ea5ab31a9824ce1fc22550e07..518b97f3cb1f0da7285c514dbe2e012ecdebbcf3 100644
--- a/Source/modules/vibration/NavigatorVibration.idl
+++ b/Source/modules/battery/NavigatorBattery.h
@@ -1,5 +1,6 @@
 /*
  *  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
@@ -17,9 +18,38 @@
  *  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
+
+