Remove duplicated headers from core/

Source/core/html/HTMLFrameSetElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann (hausmann@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 14 matching lines @@
 #include "core/html/HTMLFrameSetElement.h"
 
 #include "CSSPropertyNames.h"
 #include "HTMLNames.h"
 #include "bindings/v8/ScriptEventListener.h"
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/events/MouseEvent.h"
 #include "core/events/ThreadLocalEventNames.h"
 #include "core/html/HTMLCollection.h"
-#include "core/html/HTMLDimension.h"
 #include "core/html/HTMLFrameElement.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/frame/Frame.h"
 #include "core/rendering/RenderFrameSet.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 HTMLFrameSetElement::HTMLFrameSetElement(Document& document)
@@ skipping 179 matching lines @@
     Node* frameNode = children()->namedItem(name);
     if (!frameNode || !frameNode->hasTagName(HTMLNames::frameTag))
         return 0;
     Document* document = toHTMLFrameElement(frameNode)->contentDocument();
     if (!document || !document->frame())
         return 0;
     return document->domWindow();
 }
 
 } // namespace WebCore