Reduce forward declarations in core/rendering

Source/core/rendering/svg/SVGTextLayoutEngine.h

 /*
  * Copyright (C) Research In Motion Limited 2010-2012. 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 14 matching lines @@
 #include "core/rendering/svg/SVGTextLayoutAttributes.h"
 #include "core/rendering/svg/SVGTextMetrics.h"
 #include "platform/graphics/Path.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class RenderObject;
 class RenderStyle;
 class RenderSVGInlineText;
-class SVGElement;
 class SVGInlineTextBox;
-class SVGRenderStyle;
 
 // SVGTextLayoutEngine performs the second layout phase for SVG text.
 //
 // The InlineBox tree was created, containing the text chunk information, necessary to apply
 // certain SVG specific text layout properties (text-length adjustments and text-anchor).
 // The second layout phase uses the SVGTextLayoutAttributes stored in the individual
 // RenderSVGInlineText renderers to compute the final positions for each character
 // which are stored in the SVGInlineTextBox objects.
 
 class SVGTextLayoutEngine {
@@ skipping 52 matching lines @@
     float m_textPathLength;
     float m_textPathStartOffset;
     float m_textPathCurrentOffset;
     float m_textPathSpacing;
     float m_textPathScaling;
 };
 
 } // namespace WebCore
 
 #endif