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

third_party/WebKit/public/platform/WebBatteryStatusListener.h

Index: third_party/WebKit/public/platform/WebBatteryStatusListener.h
diff --git a/third_party/WebKit/public/platform/WebBatteryStatusListener.h b/third_party/WebKit/public/platform/WebBatteryStatusListener.h
new file mode 100644
index 0000000000000000000000000000000000000000..decb8074194b17ef3d3ce9c5279190a990700e16
--- /dev/null
+++ b/third_party/WebKit/public/platform/WebBatteryStatusListener.h
@@ -0,0 +1,25 @@
+// 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 WebBatteryStatusListener_h
+#define WebBatteryStatusListener_h
+
+#include "WebBatteryStatus.h"
+#include "WebPlatformEventListener.h"
+
+namespace blink {
+
+class WebBatteryStatus;
+
+class WebBatteryStatusListener : public WebPlatformEventListener {
+public:
+    // This method is called when a new battery status is available.
+    virtual void updateBatteryStatus(const WebBatteryStatus&) = 0;
+
+    virtual ~WebBatteryStatusListener() { }
+};
+
+} // namespace blink
+
+#endif // WebBatteryStatusListener_h