Fix some SVGFonts compilation errors

Source/core/css/CSSFontFace.cpp

 /*
  * Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 49 matching lines @@
 {
     if (m_segmentedFontFace)
         m_segmentedFontFace->fontSelector()->fontFaceInvalidated();
 
     if (!isValid() || source != m_sources.first())
         return;
 
     if (loadStatus() == FontFace::Loading) {
         if (source->ensureFontData()) {
             setLoadStatus(FontFace::Loaded);
+#if ENABLE(SVG_FONTS)
             Document* document = m_segmentedFontFace ? m_segmentedFontFace->fontSelector()->document() : 0;
             if (document && source->isSVGFontFaceSource())
                 UseCounter::count(*document, UseCounter::SVGFontInCSS);
+#endif
         } else {
             m_sources.removeFirst();
             load();
         }
     }
 
     if (m_segmentedFontFace)
         m_segmentedFontFace->fontLoaded(this);
 }
 
@@ skipping 155 matching lines @@
 }
 
 void CSSFontFace::trace(Visitor* visitor)
 {
     visitor->trace(m_segmentedFontFace);
     visitor->trace(m_sources);
     visitor->trace(m_fontFace);
 }
 
 }