Shape unicode-range: font faces in only one iteration

third_party/WebKit/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 30 matching lines @@
 
 class FontDescription;
 class RemoteFontFaceSource;
 class SimpleFontData;
 
 class CORE_EXPORT CSSFontFace final : public NoBaseWillBeGarbageCollectedFinalized<CSSFontFace> {
     USING_FAST_MALLOC_WILL_BE_REMOVED(CSSFontFace);
     WTF_MAKE_NONCOPYABLE(CSSFontFace);
 public:
     CSSFontFace(FontFace* fontFace, Vector<UnicodeRange>& ranges)
-        : m_ranges(ranges)
+        : m_ranges(adoptRef(new UnicodeRangeSet(ranges)))
         , m_segmentedFontFace(nullptr)
         , m_fontFace(fontFace)
     {
         ASSERT(m_fontFace);
     }
 
     FontFace* fontFace() const { return m_fontFace; }
 
-    UnicodeRangeSet& ranges() { return m_ranges; }
+    PassRefPtr<UnicodeRangeSet> ranges() { return m_ranges; }
 
     void setSegmentedFontFace(CSSSegmentedFontFace*);
     void clearSegmentedFontFace() { m_segmentedFontFace = nullptr; }
 
     bool isValid() const { return !m_sources.isEmpty(); }
 
     void addSource(PassOwnPtrWillBeRawPtr<CSSFontFaceSource>);
 
     void didBeginLoad();
     void fontLoaded(RemoteFontFaceSource*);
     void didBecomeVisibleFallback(RemoteFontFaceSource*);
 
     PassRefPtr<SimpleFontData> getFontData(const FontDescription&);
 
     FontFace::LoadStatusType loadStatus() const { return m_fontFace->loadStatus(); }
     bool maybeScheduleFontLoad(const FontDescription&, UChar32);
-    bool maybeScheduleFontLoad(const FontDescription&, const FontDataRange&);
+    bool maybeScheduleFontLoad(const FontDescription&, const FontDataForRangeSet&);
     void load();
     void load(const FontDescription&);
 
     bool hadBlankText() { return isValid() && m_sources.first()->hadBlankText(); }
 
     DECLARE_TRACE();
 
 private:
     void setLoadStatus(FontFace::LoadStatusType);
 
-    UnicodeRangeSet m_ranges;
+    RefPtr<UnicodeRangeSet> m_ranges;
     RawPtrWillBeMember<CSSSegmentedFontFace> m_segmentedFontFace;
     WillBeHeapDeque<OwnPtrWillBeMember<CSSFontFaceSource>> m_sources;
     RawPtrWillBeMember<FontFace> m_fontFace;
 };
 
 } // namespace blink
 
 #endif