[Font Load Events] Implement FontFaceSet methods

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 20 matching lines @@
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class CSSFontFace;
 class CSSFontSelector;
 class FontData;
 class FontDescription;
+class FontFace;
 class SegmentedFontData;
 
 class CSSSegmentedFontFace : public RefCounted<CSSSegmentedFontFace> {
 public:
     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; }
@@ skipping 10 matching lines @@
 
     class LoadFontCallback : public RefCounted<LoadFontCallback> {
     public:
         virtual ~LoadFontCallback() { }
         virtual void notifyLoaded(CSSSegmentedFontFace*) = 0;
         virtual void notifyError(CSSSegmentedFontFace*) = 0;
     };
 
     bool checkFont() const;
     void loadFont(const FontDescription&, PassRefPtr<LoadFontCallback> loadCallback);
+    Vector<RefPtr<FontFace> > fontFaces() const;
     void willUseFontData(const FontDescription&);
 
 private:
     CSSSegmentedFontFace(CSSFontSelector*, FontTraitsMask, bool isLocalFallback);
 
     void pruneTable();
     bool isValid() const;
     bool isLoading() const;
 
     CSSFontSelector* m_fontSelector;
     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