Move most of FontRenderStyle manipulation code into its own file

third_party/WebKit/Source/platform/fonts/SimpleFontData.h

 /*
  * This file is part of the internal font implementation.
  *
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007-2008 Torch Mobile, Inc.
  *
  * 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.
@@ skipping 119 matching lines @@
 protected:
     SimpleFontData(const FontPlatformData&, PassRefPtr<CustomFontData> customData, bool isTextOrientationFallback = false);
 
     SimpleFontData(PassRefPtr<CustomFontData> customData, float fontSize, bool syntheticBold, bool syntheticItalic);
 
 private:
     void platformInit();
     void platformGlyphInit();
 
     PassRefPtr<SimpleFontData> createScaledFontData(const FontDescription&, float scaleFactor) const;
-    PassRefPtr<SimpleFontData> platformCreateScaledFontData(const FontDescription&, float scaleFactor) const;
 
     FontMetrics m_fontMetrics;
     float m_maxCharWidth;
     float m_avgCharWidth;
 
     FontPlatformData m_platformData;
 
     mutable OwnPtr<GlyphMetricsMap<FloatRect>> m_glyphToBoundsMap;
     mutable GlyphMetricsMap<float> m_glyphToWidthMap;
 
@@ skipping 60 matching lines @@
     width = platformWidthForGlyph(glyph);
 
     m_glyphToWidthMap.setMetricsForGlyph(glyph, width);
     return width;
 }
 
 DEFINE_FONT_DATA_TYPE_CASTS(SimpleFontData, false);
 
 } // namespace blink
 #endif // SimpleFontData_h