CSSSegmentedFontFaceCache should not know about Document.

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 17 matching lines @@
 
 #include "core/css/CSSFontSelector.h"
 #include "core/css/CSSSegmentedFontFace.h"
 #include "core/css/FontFaceSet.h"
 #include "core/dom/Document.h"
 #include "core/frame/UseCounter.h"
 #include "core/platform/graphics/SimpleFontData.h"
 
 namespace WebCore {
 
+PassRefPtr<CSSFontFace> CSSFontFace::createFromStyleRule(Document* document, const StyleRuleFontFace* fontFaceRule)
+{
+    RefPtr<FontFace> fontFace = FontFace::create(fontFaceRule);
+    if (!fontFace || fontFace->family().isEmpty())
+        return 0;
+
+    unsigned traitsMask = fontFace->traitsMask();
+    if (!traitsMask)
+        return 0;
+
+    // FIXME: Plumbing back into createCSSFontFace seems odd.
+    // Maybe move FontFace::createCSSFontFace logic here?
+    RefPtr<CSSFontFace> cssFontFace = fontFace->createCSSFontFace(document);
+    if (!cssFontFace || !cssFontFace->isValid())
+        return 0;
+
+    return cssFontFace;
+}
+
 bool CSSFontFace::isLoaded() const
 {
     size_t size = m_sources.size();
     for (size_t i = 0; i < size; i++) {
         if (!m_sources[i]->isLoaded())
             return false;
     }
     return true;
 }
 
@@ skipping 153 matching lines @@
         index += U16_LENGTH(c);
         for (unsigned i = 0; i < m_ranges.size(); i++) {
             if (m_ranges[i].contains(c))
                 return true;
         }
     }
     return false;
 }
 
 }