Reduce forward declarations in core/svg

Source/core/svg/SVGGlyphMap.h

 /*
  * Copyright (C) 2008 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
  * 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 13 matching lines @@
 #include "core/svg/SVGParserUtilities.h"
 #include "platform/fonts/Latin1TextIterator.h"
 #include "platform/fonts/SVGGlyph.h"
 #include "platform/text/SurrogatePairAwareTextIterator.h"
 #include "wtf/HashMap.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 struct GlyphMapNode;
-class SVGFontData;
 
 typedef HashMap<UChar32, RefPtr<GlyphMapNode> > GlyphMapLayer;
 
 struct GlyphMapNode : public RefCounted<GlyphMapNode> {
 private:
     GlyphMapNode() { }
 public:
     static PassRefPtr<GlyphMapNode> create() { return adoptRef(new GlyphMapNode); }
 
     Vector<SVGGlyph> glyphs;
@@ skipping 201 matching lines @@
     Vector<SVGGlyph> m_glyphTable;
     HashMap<String, Glyph> m_namedGlyphs;
     HashMap<String, Glyph> m_idGlyphs;
     int m_currentPriority;
 };
 
 }
 
 #endif // ENABLE(SVG_FONTS)
 #endif // SVGGlyphMap_h