First part of work to move V8 binding integrity off of vtables.

Source/WebCore/html/HTMLDetailsElement.cpp

 /*
  * Copyright (C) 2010, 2011 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 85 matching lines @@
     RefPtr<HTMLDetailsElement> details = adoptRef(new HTMLDetailsElement(tagName, document));
     details->ensureUserAgentShadowRoot();
     return details.release();
 }
 
 HTMLDetailsElement::HTMLDetailsElement(const QualifiedName& tagName, Document* document)
     : HTMLElement(tagName, document)
     , m_isOpen(false)
 {
     ASSERT(hasTagName(detailsTag));
+    ScriptWrappable::init(this);
 }
 
 RenderObject* HTMLDetailsElement::createRenderer(RenderArena* arena, RenderStyle*)
 {
     return new (arena) RenderBlock(this);
 }
 
 void HTMLDetailsElement::didAddUserAgentShadowRoot(ShadowRoot* root)
 {
     root->appendChild(DetailsSummaryElement::create(document()), ASSERT_NO_EXCEPTION, AttachLazily);
@@ skipping 36 matching lines @@
 }
 
 void HTMLDetailsElement::toggleOpen()
 {
     setAttribute(openAttr, m_isOpen ? nullAtom : emptyAtom);
 }
 
 }
 
 #endif