Remove REM units.

sky/engine/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 41 matching lines @@
 
     void inheritFrom(const FontDescription&);
     void fromSystemFont(CSSValueID);
 
     void setFontFamilyInitial();
     void setFontFamilyInherit(const FontDescription&);
     void setFontFamilyValue(CSSValue*);
 
     void setFontSizeInitial();
     void setFontSizeInherit(const FontDescription&);
-    void setFontSizeValue(CSSValue*, RenderStyle* parentStyle, const RenderStyle* rootElementStyle);
+    void setFontSizeValue(CSSValue*, RenderStyle* parentStyle);
 
     void setWeight(FontWeight);
     void setStretch(FontStretch);
     void setFeatureSettings(PassRefPtr<FontFeatureSettings>);
     void setScript(const String& locale);
     void setStyle(FontStyle);
     void setVariant(FontVariant);
     void setVariantLigatures(const FontDescription::VariantLigatures&);
     void setTextRendering(TextRenderingMode);
     void setKerning(FontDescription::Kerning);
@@ skipping 49 matching lines @@
     // is changed, FontBuilder tracks the need to update
     // style->font() with this bool.
     bool m_fontDirty;
 
     friend class FontBuilderTest;
 };
 
 }
 
 #endif  // SKY_ENGINE_CORE_CSS_RESOLVER_FONTBUILDER_H_