Reduce repetitive EventTarget subclassing

Source/core/loader/appcache/ApplicationCache.cpp

 /*
  * Copyright (C) 2008, 2009 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 109 matching lines @@
         return EventTypeNames::updateready;
     case ApplicationCacheHost::CACHED_EVENT:
         return EventTypeNames::cached;
     case ApplicationCacheHost::OBSOLETE_EVENT:
         return EventTypeNames::obsolete;
     }
     ASSERT_NOT_REACHED();
     return EventTypeNames::error;
 }
 
-EventTargetData* ApplicationCache::eventTargetData()
-{
-    return &m_eventTargetData;
-}
-
-EventTargetData* ApplicationCache::ensureEventTargetData()
-{
-    return &m_eventTargetData;
-}
-
 } // namespace WebCore