Make text visible when font loading takes longer than 3 seconds

Source/core/css/CSSFontFace.h

 /*
  * Copyright (C) 2007, 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 50 matching lines @@
 
     void setSegmentedFontFace(CSSSegmentedFontFace*);
     void clearSegmentedFontFace() { m_segmentedFontFace = 0; }
 
     bool isValid() const { return !m_sources.isEmpty(); }
 
     void addSource(PassOwnPtr<CSSFontFaceSource>);
 
     void beginLoadIfNeeded(CSSFontFaceSource*, CSSFontSelector* = 0);
     void fontLoaded(CSSFontFaceSource*);
+    void fontLoadWaitLimitExceeded(CSSFontFaceSource*);
 
     PassRefPtr<SimpleFontData> getFontData(const FontDescription&);
 
     struct UnicodeRange {
         UnicodeRange(UChar32 from, UChar32 to)
             : m_from(from)
             , m_to(to)
         {
         }
 
@@ skipping 28 matching lines @@
 
     UnicodeRangeSet m_ranges;
     CSSSegmentedFontFace* m_segmentedFontFace;
     Deque<OwnPtr<CSSFontFaceSource> > m_sources;
     FontFace* m_fontFace;
 };
 
 }
 
 #endif