Remove ~1750 superfluous includes from core

Source/core/svg/SVGFontElement.cpp

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 
 #if ENABLE(SVG_FONTS)
 #include "core/svg/SVGFontElement.h"
 
 #include "SVGNames.h"
-#include "core/dom/Document.h"
-#include "core/platform/graphics/Font.h"
-#include "core/platform/graphics/GlyphPageTreeNode.h"
 #include "core/svg/SVGGlyphElement.h"
 #include "core/svg/SVGHKernElement.h"
 #include "core/svg/SVGMissingGlyphElement.h"
 #include "core/svg/SVGVKernElement.h"
 #include <wtf/ASCIICType.h>
 
 namespace WebCore {
 
 // Animated property definitions
 DEFINE_ANIMATED_BOOLEAN(SVGFontElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
@@ skipping 213 matching lines @@
     
 Glyph SVGFontElement::missingGlyph()
 {
     ensureGlyphCache();
     return m_missingGlyph;
 }
 
 }
 
 #endif // ENABLE(SVG_FONTS)