Remove duplicated headers from core/

Source/core/loader/HistoryController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * 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
@@ skipping 14 matching lines @@
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (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/loader/HistoryController.h"
 
 #include "core/dom/Document.h"
-#include "core/history/HistoryItem.h"
 #include "core/inspector/InspectorController.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 #include "core/frame/Frame.h"
 #include "core/frame/FrameView.h"
 #include "core/page/FrameTree.h"
 #include "core/page/Page.h"
 #include "platform/Logging.h"
 #include "wtf/Deque.h"
 #include "wtf/text/CString.h"
@@ skipping 343 matching lines @@
     if (item->url() != documentLoader->url()) {
         item->reset();
         initializeItem(item, frame);
     } else {
         // Even if the final URL didn't change, the form data may have changed.
         item->setFormInfoFromRequest(documentLoader->request());
     }
 }
 
 } // namespace WebCore