Add CSSFontSelector::removeFontFaceRule()

Source/core/css/CSSSegmentedFontFace.h

 /*
  * Copyright (C) 2008 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 36 matching lines @@
     static PassRefPtr<CSSSegmentedFontFace> create(CSSFontSelector* selector, FontTraitsMask traitsMask, bool isLocalFallback) { return adoptRef(new CSSSegmentedFontFace(selector, traitsMask, isLocalFallback)); }
     ~CSSSegmentedFontFace();
 
     CSSFontSelector* fontSelector() const { return m_fontSelector; }
     FontTraitsMask traitsMask() const { return m_traitsMask; }
     bool isLocalFallback() const { return m_isLocalFallback; }
 
     void fontLoaded(CSSFontFace*);
 
     void appendFontFace(PassRefPtr<CSSFontFace>);
+    void removeFontFace(PassRefPtr<CSSFontFace>);
+    bool isEmpty() const { return m_fontFaces.isEmpty(); }
 
     PassRefPtr<FontData> getFontData(const FontDescription&);
 
     class LoadFontCallback : public RefCounted<LoadFontCallback> {
     public:
         virtual ~LoadFontCallback() { }
         virtual void notifyLoaded(CSSSegmentedFontFace*) = 0;
         virtual void notifyError(CSSSegmentedFontFace*) = 0;
     };
 
@@ skipping 14 matching lines @@
     FontTraitsMask m_traitsMask;
     bool m_isLocalFallback;
     HashMap<unsigned, RefPtr<SegmentedFontData> > m_fontDataTable;
     Vector<RefPtr<CSSFontFace>, 1> m_fontFaces;
     Vector<RefPtr<LoadFontCallback> > m_callbacks;
 };
 
 } // namespace WebCore
 
 #endif // CSSSegmentedFontFace_h