Reduce forward declarations in core/rendering

Source/core/rendering/HitTestLocation.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 15 matching lines @@
 #include "platform/geometry/FloatRect.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/geometry/RoundedRect.h"
 #include "wtf/Forward.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
-class Element;
-class LocalFrame;
-class Image;
-class KURL;
-class Node;
-class Scrollbar;
-
 class HitTestLocation {
 public:
 
     HitTestLocation();
     HitTestLocation(const LayoutPoint&);
     HitTestLocation(const FloatPoint&);
     HitTestLocation(const FloatPoint&, const FloatQuad&);
     // Pass non-zero padding values to perform a rect-based hit test.
     HitTestLocation(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
     HitTestLocation(const HitTestLocation&, const LayoutSize& offset);
@@ skipping 34 matching lines @@
     FloatPoint m_transformedPoint;
     FloatQuad m_transformedRect;
 
     bool m_isRectBased;
     bool m_isRectilinear;
 };
 
 } // namespace WebCore
 
 #endif // HitTestLocation_h