Add support to Battery Status API in blink.

Source/modules/battery/BatteryStatus.cpp

Index: Source/modules/battery/BatteryStatus.cpp
diff --git a/Source/modules/battery/BatteryStatus.cpp b/Source/modules/battery/BatteryStatus.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..34c9eade5d78babbeb280d56a7bc985c488d9a69
--- /dev/null
+++ b/Source/modules/battery/BatteryStatus.cpp
@@ -0,0 +1,55 @@
+/*
+ *  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.
+ */
+
+#include "config.h"
+#include "modules/battery/BatteryStatus.h"
+
+#include <limits>
+
+namespace WebCore {
+
+PassRefPtr<BatteryStatus> BatteryStatus::create()
+{
+    return adoptRef(new BatteryStatus);
+}
+
+PassRefPtr<BatteryStatus> BatteryStatus::create(bool charging, double chargingTime, double dischargingTime, double level)
+{
+    return adoptRef(new BatteryStatus(charging, chargingTime, dischargingTime, level));
+}
+
+BatteryStatus::BatteryStatus()
+    : m_charging(true)
+    , m_chargingTime(0)
+    , m_dischargingTime(std::numeric_limits<double>::infinity())
+    , m_level(1)
+{
+}
+
+BatteryStatus::BatteryStatus(bool charging, double chargingTime, double dischargingTime, double level)
+    : m_charging(charging)
+    , m_chargingTime(chargingTime)
+    , m_dischargingTime(dischargingTime)
+    , m_level(level)
+{
+}
+
+} // namespace WebCore
+