bindings: Adds virtual ScriptWrappable::wrap method.

Source/core/html/HTMLDialogElement.h

 /*
  * Copyright (C) 2012 Google 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
@@ skipping 17 matching lines @@
 
 #include "core/html/HTMLElement.h"
 
 namespace blink {
 
 class Document;
 class ExceptionState;
 class QualifiedName;
 
 class HTMLDialogElement FINAL : public HTMLElement {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     DECLARE_NODE_FACTORY(HTMLDialogElement);
 
     void close(const String& returnValue, ExceptionState&);
     void closeDialog(const String& returnValue = String());
     void show();
     void showModal(ExceptionState&);
     virtual void removedFrom(ContainerNode*) OVERRIDE;
 
     // NotCentered means do not center the dialog. Centered means the dialog has
@@ skipping 20 matching lines @@
 
     void forceLayoutForCentering();
 
     CenteringMode m_centeringMode;
     LayoutUnit m_centeredPosition;
     String m_returnValue;
 };
 
 } // namespace blink
 
-#endif
+#endif // HTMLDialogElement_h