Reapply the non-MathExtras parts of

Source/platform/fonts/FontDescription.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  *
  * 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
@@ skipping 160 matching lines @@
     float letterSpacing() const { return m_letterSpacing; }
     FontOrientation orientation() const { return static_cast<FontOrientation>(m_orientation); }
     NonCJKGlyphOrientation nonCJKGlyphOrientation() const { return static_cast<NonCJKGlyphOrientation>(m_nonCJKGlyphOrientation); }
     FontWidthVariant widthVariant() const { return static_cast<FontWidthVariant>(m_widthVariant); }
     FontFeatureSettings* featureSettings() const { return m_featureSettings.get(); }
 
     float effectiveFontSize() const; // Returns either the computedSize or the computedPixelSize
     FontCacheKey cacheKey(const FontFaceCreationParams&, FontTraits desiredTraits = FontTraits(0)) const;
 
     void setFamily(const FontFamily& family) { m_familyList = family; }
-    void setComputedSize(float s) { m_computedSize = clampToFloat(s); }
-    void setSpecifiedSize(float s) { m_specifiedSize = clampToFloat(s); }
+    void setComputedSize(float s) { m_computedSize = clampTo<float>(s); }
+    void setSpecifiedSize(float s) { m_specifiedSize = clampTo<float>(s); }
     void setStyle(FontStyle i) { m_style = i; }
     void setVariant(FontVariant c) { m_variant = c; }
     void setVariantLigatures(const VariantLigatures&);
     void setIsAbsoluteSize(bool s) { m_isAbsoluteSize = s; }
     void setWeight(FontWeight w) { m_weight = w; }
     void setStretch(FontStretch s) { m_stretch = s; }
     void setGenericFamily(GenericFamilyType genericFamily) { m_genericFamily = genericFamily; }
     void setKerning(Kerning kerning) { m_kerning = kerning; updateTypesettingFeatures(); }
     void setKeywordSize(unsigned s) { m_keywordSize = s; }
     void setFontSmoothing(FontSmoothingMode smoothing) { m_fontSmoothing = smoothing; }
@@ skipping 97 matching lines @@
         && m_script == other.m_script
         && m_syntheticBold == other.m_syntheticBold
         && m_syntheticItalic == other.m_syntheticItalic
         && m_featureSettings == other.m_featureSettings
         && m_subpixelTextPosition == other.m_subpixelTextPosition;
 }
 
 } // namespace blink
 
 #endif