Add DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION() macro

Source/core/html/HTMLMediaElement.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 522 matching lines @@
 
 template <>
 struct ValueToString<TextTrackCue*> {
     static String string(TextTrackCue* const& cue)
     {
         return cue->toString();
     }
 };
 #endif
 
-inline bool isHTMLMediaElement(const Node& node)
+inline bool isHTMLMediaElement(const Element& element)
 {
-    return isHTMLAudioElement(node) || isHTMLVideoElement(node);
+    return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
-inline bool isHTMLMediaElement(const Node* node)
+inline bool isHTMLMediaElement(const HTMLElement& element)
 {
-    return node && isHTMLMediaElement(*node);
+    return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
-DEFINE_ELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
+DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } //namespace
 
 #endif