Move bounds and width function sanity checks to computation function

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 168 matching lines @@
     };
 
     mutable std::unique_ptr<DerivedFontData> m_derivedFontData;
 
     RefPtr<CustomFontData> m_customFontData;
 };
 
 
 ALWAYS_INLINE FloatRect SimpleFontData::boundsForGlyph(Glyph glyph) const
 {
-    if (!m_platformData.size())
-        return FloatRect();
-
-    static_assert(sizeof(glyph) == 2, "Glyph id should not be truncated.");
-
     FloatRect boundsResult;
     if (m_glyphToBoundsMap) {
         boundsResult = m_glyphToBoundsMap->metricsForGlyph(glyph);
         if (boundsResult.width() != cGlyphSizeUnknown)
             return boundsResult;
     }
 
     boundsResult = platformBoundsForGlyph(glyph);
     if (!m_glyphToBoundsMap)
         m_glyphToBoundsMap = wrapUnique(new GlyphMetricsMap<FloatRect>);
     m_glyphToBoundsMap->setMetricsForGlyph(glyph, boundsResult);
 
     return boundsResult;
 }
 
 ALWAYS_INLINE float SimpleFontData::widthForGlyph(Glyph glyph) const
 {
-    if (!m_platformData.size())
-        return 0;
-    static_assert(sizeof(glyph) == 2, "Glyph id should not be truncated.");
-
     float width = m_glyphToWidthMap.metricsForGlyph(glyph);
     if (width != cGlyphSizeUnknown)
         return width;
 
     width = platformWidthForGlyph(glyph);
 
     m_glyphToWidthMap.setMetricsForGlyph(glyph, width);
     return width;
 }
 
 DEFINE_FONT_DATA_TYPE_CASTS(SimpleFontData, false);
 
 } // namespace blink
 #endif // SimpleFontData_h