Move Web-facing fullscreen APIs to DocumentFullscreen and ElementFullscreen

Source/core/dom/ElementFullscreen.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 ElementFullscreen_h
+#define ElementFullscreen_h
+
+#include "core/events/EventTarget.h"
+
+namespace blink {
+
+class Element;
+
+class ElementFullscreen {
+public:
+    // Mozilla version
+    static const unsigned short ALLOW_KEYBOARD_INPUT = 1;
+    static void webkitRequestFullScreen(Element&, unsigned short flags);
+
+    // W3C version
+    static void webkitRequestFullscreen(Element&);
+
+    DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitfullscreenchange);
+    DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitfullscreenerror);
+};
+
+} // namespace blink
+
+#endif // ElementFullscreen_h