Reduce repetitive EventTarget subclassing

Source/modules/websockets/WebSocket.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 599 matching lines @@
     }
 
     if (m_channel) {
         m_channel->disconnect();
         m_channel = 0;
     }
     if (hasPendingActivity())
         ActiveDOMObject::unsetPendingActivity(this);
 }
 
-EventTargetData* WebSocket::eventTargetData()
-{
-    return &m_eventTargetData;
-}
-
-EventTargetData* WebSocket::ensureEventTargetData()
-{
-    return &m_eventTargetData;
-}
-
 size_t WebSocket::getFramingOverhead(size_t payloadSize)
 {
     static const size_t hybiBaseFramingOverhead = 2; // Every frame has at least two-byte header.
     static const size_t hybiMaskingKeyLength = 4; // Every frame from client must have masking key.
     static const size_t minimumPayloadSizeWithTwoByteExtendedPayloadLength = 126;
     static const size_t minimumPayloadSizeWithEightByteExtendedPayloadLength = 0x10000;
     size_t overhead = hybiBaseFramingOverhead + hybiMaskingKeyLength;
     if (payloadSize >= minimumPayloadSizeWithEightByteExtendedPayloadLength)
         overhead += 8;
     else if (payloadSize >= minimumPayloadSizeWithTwoByteExtendedPayloadLength)
         overhead += 2;
     return overhead;
 }
 
 } // namespace WebCore