Clean up setting font-family: initial value.

Source/core/css/resolver/FontBuilder.cpp

 /*
  * 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 121 matching lines @@
 
     // Handle the zoom factor.
     fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(fontDescription, effectiveZoom, fontDescription.specifiedSize()));
     scope.set(fontDescription);
 }
 
 void FontBuilder::setFontFamilyInitial()
 {
     FontDescriptionChangeScope scope(this);
 
-    FontDescription initialDesc = FontDescription();
-
-    // We need to adjust the size to account for the generic family change from monospace to non-monospace.
-    if (scope.fontDescription().keywordSize() && scope.fontDescription().useFixedDefaultSize())
-        scope.fontDescription().setSpecifiedSize(FontSize::fontSizeForKeyword(m_document, CSSValueXxSmall + scope.fontDescription().keywordSize() - 1, false));
-    scope.fontDescription().setGenericFamily(initialDesc.genericFamily());
-    if (!initialDesc.firstFamily().familyIsEmpty())
-        scope.fontDescription().setFamily(initialDesc.firstFamily());
+    scope.fontDescription().setGenericFamily(FontBuilder::initialGenericFamily());
 }
 
 void FontBuilder::setFontFamilyInherit(const FontDescription& parentFontDescription)
 {
     FontDescriptionChangeScope scope(this);
 
     scope.fontDescription().setGenericFamily(parentFontDescription.genericFamily());
     scope.fontDescription().setFamily(parentFontDescription.family());
     scope.fontDescription().setIsSpecifiedFont(parentFontDescription.isSpecifiedFont());
 }
@@ skipping 516 matching lines @@
     FontOrientation fontOrientation;
     NonCJKGlyphOrientation glyphOrientation;
     getFontAndGlyphOrientation(documentStyle, fontOrientation, glyphOrientation);
     fontDescription.setOrientation(fontOrientation);
     fontDescription.setNonCJKGlyphOrientation(glyphOrientation);
     documentStyle->setFontDescription(fontDescription);
     documentStyle->font().update(fontSelector);
 }
 
 }