Remove unused includes from various .cpp files in core/

Source/core/workers/SharedWorkerContext.cpp

 /*
  * Copyright (C) 2009 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 18 matching lines @@
  */
 
 #include "config.h"
 
 #include "core/workers/SharedWorkerContext.h"
 
 #include "core/dom/EventNames.h"
 #include "core/dom/MessageEvent.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/page/DOMWindow.h"
-#include "core/platform/NotImplemented.h"
 #include "core/workers/SharedWorkerThread.h"
 
 namespace WebCore {
 
 PassRefPtr<MessageEvent> createConnectEvent(PassRefPtr<MessagePort> port)
 {
     RefPtr<MessageEvent> event = MessageEvent::create(adoptPtr(new MessagePortArray(1, port)));
     event->initEvent(eventNames().connectEvent, false, false);
     return event.release();
 }
@@ skipping 27 matching lines @@
     return static_cast<SharedWorkerThread*>(Base::thread());
 }
 
 void SharedWorkerContext::logExceptionToConsole(const String& errorMessage, const String& sourceURL, int lineNumber, PassRefPtr<ScriptCallStack> callStack)
 {
     WorkerContext::logExceptionToConsole(errorMessage, sourceURL, lineNumber, callStack);
     addMessageToWorkerConsole(JSMessageSource, ErrorMessageLevel, errorMessage, sourceURL, lineNumber, callStack);
 }
 
 } // namespace WebCore