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

Source/WebCore/Modules/indexeddb/IDBVersionChangeEvent.cpp

 /*
  * Copyright (C) 2011 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 23 matching lines @@
 PassRefPtr<IDBVersionChangeEvent> IDBVersionChangeEvent::create(PassRefPtr<IDBAny> oldVersion, PassRefPtr<IDBAny> newVersion, const AtomicString& eventType)
 {
     return adoptRef(new IDBVersionChangeEvent(oldVersion, newVersion, eventType));
 }
 
 IDBVersionChangeEvent::IDBVersionChangeEvent(PassRefPtr<IDBAny> oldVersion, PassRefPtr<IDBAny> newVersion, const AtomicString& eventType)
     : Event(eventType, false /*canBubble*/, false /*cancelable*/)
     , m_oldVersion(oldVersion)
     , m_newVersion(newVersion)
 {
+    ScriptWrappable::init(this);
 }
 
 IDBVersionChangeEvent::~IDBVersionChangeEvent()
 {
 }
 
 const AtomicString& IDBVersionChangeEvent::interfaceName() const
 {
     return eventNames().interfaceForIDBVersionChangeEvent;
 }
 
 } // namespace WebCore