Reduce repetitive EventTarget subclassing

Source/modules/indexeddb/IDBRequest.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 519 matching lines @@
 
     ASSERT_WITH_MESSAGE(m_readyState == PENDING || m_didFireUpgradeNeededEvent, "When queueing event %s, m_readyState was %d", event->type().string().utf8().data(), m_readyState);
 
     EventQueue* eventQueue = scriptExecutionContext()->eventQueue();
     event->setTarget(this);
 
     if (eventQueue->enqueueEvent(event.get()))
         m_enqueuedEvents.append(event);
 }
 
-EventTargetData* IDBRequest::eventTargetData()
-{
-    return &m_eventTargetData;
-}
-
-EventTargetData* IDBRequest::ensureEventTargetData()
-{
-    return &m_eventTargetData;
-}
-
 } // namespace WebCore