Introduce FullscreenElementStack::RequestType

Source/core/dom/Element.h

Index: Source/core/dom/Element.h
diff --git a/Source/core/dom/Element.h b/Source/core/dom/Element.h
index b3972e8a490f1d78092558e52a88c13fa933de08..cf9a401b9668372fb53eb592091e046c3d6c7515 100644
--- a/Source/core/dom/Element.h
+++ b/Source/core/dom/Element.h
@@ -466,19 +466,17 @@ public:
     void setCustomElementDefinition(PassRefPtr<CustomElementDefinition>);
     CustomElementDefinition* customElementDefinition() const;
 
-    enum {
-        ALLOW_KEYBOARD_INPUT = 1 << 0,
-        LEGACY_MOZILLA_REQUEST = 1 << 1,
-    };
-
+    // Mozilla version
+    static const unsigned short ALLOW_KEYBOARD_INPUT = 1;
     void webkitRequestFullScreen(unsigned short flags);
+
+    // W3C version
+    void webkitRequestFullscreen();
+
     bool containsFullScreenElement() const { return hasElementFlag(ContainsFullScreenElement); }
     void setContainsFullScreenElement(bool);
     void setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(bool);
 
-    // W3C API
-    void webkitRequestFullscreen();
-
     bool isInTopLayer() const { return hasElementFlag(IsInTopLayer); }
     void setIsInTopLayer(bool);