Implement CSS font-display

third_party/WebKit/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 38 matching lines @@
 public:
     static PassRefPtrWillBeRawPtr<CSSSegmentedFontFace> create(CSSFontSelector* selector, FontTraits traits)
     {
         return adoptRefWillBeNoop(new CSSSegmentedFontFace(selector, traits));
     }
     ~CSSSegmentedFontFace();
 
     CSSFontSelector* fontSelector() const { return m_fontSelector; }
     FontTraits traits() const { return m_traits; }
 
-    void fontLoaded(CSSFontFace*);
-    void fontLoadWaitLimitExceeded(CSSFontFace*);
+    // Called when status of a FontFace has changed (e.g. loaded or timed out)
+    // so cached FontData must be discarded.
+    void fontFaceInvalidated();
 
     void addFontFace(PassRefPtrWillBeRawPtr<FontFace>, bool cssConnected);
     void removeFontFace(PassRefPtrWillBeRawPtr<FontFace>);
     bool isEmpty() const { return m_fontFaces.isEmpty(); }
 
     PassRefPtr<FontData> getFontData(const FontDescription&);
 
     bool checkFont(const String&) const;
     void match(const String&, WillBeHeapVector<RefPtrWillBeMember<FontFace>>&) const;
     void willUseFontData(const FontDescription&, UChar32);
@@ skipping 13 matching lines @@
     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;
 };
 
 } // namespace blink
 
 #endif // CSSSegmentedFontFace_h