Add CSSFontSelector::removeFontFaceRule()

Source/core/css/CSSFontSelector.h

 /*
  * 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 60 matching lines @@
 
     virtual unsigned version() const OVERRIDE { return m_cssSegmentedFontFaceCache.version(); }
 
     virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&);
     CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family);
     virtual void willUseFontData(const FontDescription&, const AtomicString& family) OVERRIDE;
 
     void clearDocument();
 
     void addFontFaceRule(const StyleRuleFontFace*);
+    void removeFontFaceRule(const StyleRuleFontFace*);
 
     void fontLoaded();
     virtual void fontCacheInvalidated();
 
     virtual void registerForInvalidationCallbacks(FontSelectorClient*);
     virtual void unregisterForInvalidationCallbacks(FontSelectorClient*);
 
     Document* document() const { return m_document; }
 
     void beginLoadingFontSoon(FontResource*);
     void loadPendingFonts();
 
 private:
     explicit CSSFontSelector(Document*);
 
     void dispatchInvalidationCallbacks();
 
     Document* m_document;
     // FIXME: Move to Document or StyleEngine.
     CSSSegmentedFontFaceCache m_cssSegmentedFontFaceCache;
     HashSet<FontSelectorClient*> m_clients;
 
     FontLoader m_fontLoader;
 };
 
 } // namespace WebCore
 
 #endif // CSSFontSelector_h