Intorudce DECLARE/DEFINE_ELEMENT_FACTORY_WITH_TAGNAME macros.

Source/core/html/HTMLElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 22 matching lines @@
 class ExceptionState;
 
 enum TranslateAttributeMode {
     TranslateAttributeYes,
     TranslateAttributeNo,
     TranslateAttributeInherit
 };
 
 class HTMLElement : public Element {
 public:
-    static PassRefPtrWillBeRawPtr<HTMLElement> create(const QualifiedName& tagName, Document&);
+    DECLARE_ELEMENT_FACTORY_WITH_TAGNAME(HTMLElement);
 
     virtual String title() const OVERRIDE FINAL;
     virtual short tabIndex() const OVERRIDE;
 
     void setInnerText(const String&, ExceptionState&);
     void setOuterText(const String&, ExceptionState&);
 
     virtual bool hasCustomFocusLogic() const;
 
     String contentEditable() const;
@@ skipping 98 matching lines @@
     template<typename T> inline bool is##thisType(const PassRefPtr<T>& node) { return is##thisType(node.get()); } \
     template<typename T> inline bool is##thisType(const RefPtr<T>& node) { return is##thisType(node.get()); } \
     template <> inline bool isElementOfType<const thisType>(const HTMLElement& element) { return is##thisType(element); } \
     DEFINE_ELEMENT_TYPE_CASTS_WITH_FUNCTION(thisType)
 
 } // namespace WebCore
 
 #include "HTMLElementTypeHelpers.h"
 
 #endif // HTMLElement_h