Remove duplicated headers from core/

Source/core/workers/AbstractWorker.cpp

 /*
  * 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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/workers/AbstractWorker.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
-#include "core/events/ThreadLocalEventNames.h"
 #include "core/frame/ContentSecurityPolicy.h"
 #include "platform/weborigin/SecurityOrigin.h"
 
 namespace WebCore {
 
 AbstractWorker::AbstractWorker(ExecutionContext* context)
     : ActiveDOMObject(context)
 {
 }
 
@@ skipping 18 matching lines @@
 
     if (executionContext()->contentSecurityPolicy() && !executionContext()->contentSecurityPolicy()->allowScriptFromSource(scriptURL)) {
         exceptionState.throwSecurityError("Failed to create a worker: access to the script at '" + scriptURL.elidedString() + "' is denied by the document's Content Security Policy.");
         return KURL();
     }
 
     return scriptURL;
 }
 
 } // namespace WebCore