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

Source/WebCore/Modules/indexeddb/IDBTransaction.cpp

 /*
  * Copyright (C) 2010 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 82 matching lines @@
     , m_id(id)
     , m_database(db)
     , m_objectStoreNames(objectStoreNames)
     , m_openDBRequest(openDBRequest)
     , m_mode(mode)
     , m_state(Active)
     , m_hasPendingActivity(true)
     , m_contextStopped(false)
     , m_previousMetadata(previousMetadata)
 {
+    ScriptWrappable::init(this);
     if (mode == IndexedDB::TransactionVersionChange) {
         // Not active until the callback.
         m_state = Inactive;
     }
 
     // We pass a reference of this object before it can be adopted.
     relaxAdoptionRequirement();
     if (m_state == Active)
         IDBPendingTransactionMonitor::addNewTransaction(this);
     m_database->transactionCreated(this);
@@ skipping 331 matching lines @@
 {
     return &m_eventTargetData;
 }
 
 IDBDatabaseBackendInterface* IDBTransaction::backendDB() const
 {
     return db()->backend();
 }
 
 } // namespace WebCore