Remove custom style building for font-variant-ligatures.

Source/core/css/resolver/FontBuilder.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google 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.
  *
@@ skipping 48 matching lines @@
 
     void setFontSizeInitial();
     void setFontSizeInherit(const FontDescription&);
     void setFontSizeValue(CSSValue*, RenderStyle* parentStyle, const RenderStyle* rootElementStyle);
 
     void setWeight(FontWeight);
     void setWeightBolder();
     void setWeightLighter();
     void setStretch(FontStretch);
 
-    void setFontVariantLigaturesInitial();
-    void setFontVariantLigaturesInherit(const FontDescription&);
-    void setFontVariantLigaturesValue(CSSValue*);
-
     void setFeatureSettingsNormal();
     void setFeatureSettingsValue(CSSValue*);
 
     void setScript(const String& locale);
     void setStyle(FontStyle);
     void setVariant(FontVariant);
+    void setVariantLigatures(const FontDescription::VariantLigatures&);
     void setTextRendering(TextRenderingMode);
     void setKerning(FontDescription::Kerning);
     void setFontSmoothing(FontSmoothingMode);
 
     // FIXME: These need to just vend a Font object eventually.
     void createFont(PassRefPtrWillBeRawPtr<FontSelector>, const RenderStyle* parentStyle, RenderStyle*);
     // FIXME: This is nearly static, should either made fully static or decomposed into
     // FontBuilder calls at the callsite.
     void createFontForDocument(PassRefPtrWillBeRawPtr<FontSelector>, RenderStyle*);
 
     bool fontSizeHasViewportUnits() { return m_fontSizehasViewportUnits; }
 
     // FIXME: These should not be necessary eventually.
     void setFontDirty(bool fontDirty) { m_fontDirty = fontDirty; }
     // FIXME: This is only used by an ASSERT in StyleResolver. Remove?
     bool fontDirty() const { return m_fontDirty; }
 
     static FontDescription::GenericFamilyType initialGenericFamily() { return FontDescription::NoFamily; }
     static TextRenderingMode initialTextRendering() { return AutoTextRendering; }
     static FontVariant initialVariant() { return FontVariantNormal; }
+    static FontDescription::VariantLigatures initialVariantLigatures() { return FontDescription::VariantLigatures(); }
     static FontStyle initialStyle() { return FontStyleNormal; }
     static FontDescription::Kerning initialKerning() { return FontDescription::AutoKerning; }
     static FontSmoothingMode initialFontSmoothing() { return AutoSmoothing; }
     static FontStretch initialStretch() { return FontStretchNormal; }
 
     friend class FontDescriptionChangeScope;
 
 private:
 
     // FIXME: "size" arg should be first for consistency with other similar functions.
@@ skipping 20 matching lines @@
     // is changed, FontBuilder tracks the need to update
     // style->font() with this bool.
     bool m_fontDirty;
 
     friend class FontBuilderTest;
 };
 
 }
 
 #endif