Remove keyboard event filtering in fullscreen

Source/core/dom/ElementFullscreen.h

Index: Source/core/dom/ElementFullscreen.h
diff --git a/Source/core/dom/ElementFullscreen.h b/Source/core/dom/ElementFullscreen.h
index 01249934933750a6a10b17ca8dab2fa1f06e7438..3b23f1db0431d6c028bca8f7c94a879532716408 100644
--- a/Source/core/dom/ElementFullscreen.h
+++ b/Source/core/dom/ElementFullscreen.h
@@ -15,11 +15,6 @@ class ElementFullscreen {
 public:
     static void requestFullscreen(Element&);
 
-    // 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);