Update AbstractWorker, Worker and SharedWorker to match the spec

Source/core/workers/AbstractWorker.h

 /*
  * 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:
  *
  *     * 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 28 matching lines @@
 #include <wtf/PassRefPtr.h>
 #include <wtf/RefCounted.h>
 #include <wtf/RefPtr.h>
 #include <wtf/text/AtomicStringHash.h>
 
 namespace WebCore {
 
     class KURL;
     class ScriptExecutionContext;
 
-    class AbstractWorker : public RefCounted<AbstractWorker>, public ScriptWrappable, public ActiveDOMObject, public EventTarget {
+    class AbstractWorker : public RefCounted<AbstractWorker>, public EventTarget, public ActiveDOMObject {
     public:
         // EventTarget APIs
         virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE { return ActiveDOMObject::scriptExecutionContext(); }
 
         DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
 
         using RefCounted<AbstractWorker>::ref;
         using RefCounted<AbstractWorker>::deref;
 
         virtual void contextDestroyed() OVERRIDE;
@@ skipping 10 matching lines @@
         virtual void derefEventTarget() OVERRIDE { deref(); }
         virtual EventTargetData* eventTargetData() OVERRIDE;
         virtual EventTargetData* ensureEventTargetData() OVERRIDE;
         
         EventTargetData m_eventTargetData;
     };
 
 } // namespace WebCore
 
 #endif // AbstractWorker_h