Fix promise resolution of FontFaceSet#load()

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 45 matching lines @@
 
     void fontLoaded(CSSFontFace*);
     void fontLoadWaitLimitExceeded(CSSFontFace*);
 
     void addFontFace(PassRefPtr<FontFace>, bool cssConnected);
     void removeFontFace(PassRefPtr<FontFace>);
     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;
-    };
-
     bool checkFont(const String&) const;
-    void loadFont(const FontDescription&, const String&, PassRefPtr<LoadFontCallback>);
+    void match(const String&, Vector<RefPtr<FontFace> >&) const;
     void willUseFontData(const FontDescription&);
 
 private:
     CSSSegmentedFontFace(CSSFontSelector*, FontTraits);
 
     void pruneTable();
     bool isValid() const;
     bool isLoading() const;
     bool isLoaded() const;
 
     typedef ListHashSet<RefPtr<FontFace> > FontFaceList;
 
     CSSFontSelector* m_fontSelector;
     FontTraits m_traits;
     HashMap<unsigned, RefPtr<SegmentedFontData> > m_fontDataTable;
     // All non-CSS-connected FontFaces are stored after the CSS-connected ones.
     FontFaceList m_fontFaces;
     FontFaceList::iterator m_firstNonCssConnectedFace;
-    Vector<RefPtr<LoadFontCallback> > m_callbacks;
 };
 
 } // namespace WebCore
 
 #endif // CSSSegmentedFontFace_h