Remove duplicated headers from core/

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 13 matching lines @@
  */
 
 #include "config.h"
 #include "core/loader/appcache/ApplicationCache.h"
 
 #include "bindings/v8/ExceptionMessages.h"
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/events/EventListener.h"
-#include "core/events/ThreadLocalEventNames.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
-#include "core/loader/appcache/ApplicationCacheHost.h"
 #include "core/frame/Frame.h"
 
 namespace WebCore {
 
 ApplicationCache::ApplicationCache(Frame* frame)
     : DOMWindowProperty(frame)
 {
     ScriptWrappable::init(this);
     ApplicationCacheHost* cacheHost = applicationCacheHost();
     if (cacheHost)
@@ skipping 73 matching lines @@
     case ApplicationCacheHost::CACHED_EVENT:
         return EventTypeNames::cached;
     case ApplicationCacheHost::OBSOLETE_EVENT:
         return EventTypeNames::obsolete;
     }
     ASSERT_NOT_REACHED();
     return EventTypeNames::error;
 }
 
 } // namespace WebCore