Reduce repetitive EventTarget subclassing

Source/core/dom/NamedFlow.cpp

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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.
@@ skipping 186 matching lines @@
 
 void NamedFlow::setRenderer(RenderNamedFlowThread* parentFlowThread)
 {
     // The named flow can either go from a no_renderer->renderer or renderer->no_renderer state; anything else could indicate a bug.
     ASSERT((!m_parentFlowThread && parentFlowThread) || (m_parentFlowThread && !parentFlowThread));
 
     // If parentFlowThread is 0, the flow thread will move in the "NULL" state.
     m_parentFlowThread = parentFlowThread;
 }
 
-EventTargetData* NamedFlow::eventTargetData()
-{
-    return &m_eventTargetData;
-}
-
-EventTargetData* NamedFlow::ensureEventTargetData()
-{
-    return &m_eventTargetData;
-}
-
 void NamedFlow::dispatchRegionLayoutUpdateEvent()
 {
     ASSERT(!NoEventDispatchAssertion::isEventDispatchForbidden());
 
     // If the flow is in the "NULL" state the event should not be dispatched any more.
     if (flowState() == FlowStateNull)
         return;
 
     RefPtr<Event> event = UIEvent::create(EventTypeNames::webkitregionlayoutupdate, false, false, m_flowManager->document()->defaultView(), 0);
 
@@ skipping 23 matching lines @@
     return m_flowManager->document();
 }
 
 Node* NamedFlow::ownerNode() const
 {
     return m_flowManager->document();
 }
 
 } // namespace WebCore