Store a copy of generic font settings at CSSFontSelector.

Source/platform/fonts/GenericFontFamilySettings.h

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 22 matching lines @@
 
 #include "platform/PlatformExport.h"
 #include "wtf/HashMap.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/AtomicStringHash.h"
 
 
 namespace WebCore {
 
 class PLATFORM_EXPORT GenericFontFamilySettings {
-    WTF_MAKE_NONCOPYABLE(GenericFontFamilySettings); WTF_MAKE_FAST_ALLOCATED;
+    WTF_MAKE_FAST_ALLOCATED;
 
 public:
     GenericFontFamilySettings()
     {
     }
 
+    explicit GenericFontFamilySettings(const GenericFontFamilySettings&);
+
     void setStandard(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& standard(UScriptCode = USCRIPT_COMMON) const;
 
     void setFixed(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& fixed(UScriptCode = USCRIPT_COMMON) const;
 
     void setSerif(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& serif(UScriptCode = USCRIPT_COMMON) const;
 
     void setSansSerif(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& sansSerif(UScriptCode = USCRIPT_COMMON) const;
 
     void setCursive(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& cursive(UScriptCode = USCRIPT_COMMON) const;
 
     void setFantasy(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& fantasy(UScriptCode = USCRIPT_COMMON) const;
 
     void setPictograph(const AtomicString&, UScriptCode = USCRIPT_COMMON);
     const AtomicString& pictograph(UScriptCode = USCRIPT_COMMON) const;
 
     // Only called by InternalSettings to clear font family maps.
     void reset();
 
 private:
+    GenericFontFamilySettings& operator=(const GenericFontFamilySettings&) WTF_DELETED_FUNCTION;
+
     // UScriptCode uses -1 and 0 for UScriptInvalidCode and UScriptCommon.
     // We need to use -2 and -3 for empty value and deleted value.
     struct UScriptCodeHashTraits : WTF::GenericHashTraits<int> {
         static const bool emptyValueIsZero = false;
         static int emptyValue() { return -2; }
         static void constructDeletedValue(int& slot) { slot = -3; }
         static bool isDeletedValue(int value) { return value == -3; }
     };
 
     typedef HashMap<int, AtomicString, DefaultHash<int>::Hash, UScriptCodeHashTraits> ScriptFontFamilyMap;
 
     void setGenericFontFamilyMap(ScriptFontFamilyMap&, const AtomicString&, UScriptCode);
     const AtomicString& genericFontFamilyForScript(const ScriptFontFamilyMap&, UScriptCode) const;
 
     ScriptFontFamilyMap m_standardFontFamilyMap;
     ScriptFontFamilyMap m_serifFontFamilyMap;
     ScriptFontFamilyMap m_fixedFontFamilyMap;
     ScriptFontFamilyMap m_sansSerifFontFamilyMap;
     ScriptFontFamilyMap m_cursiveFontFamilyMap;
     ScriptFontFamilyMap m_fantasyFontFamilyMap;
     ScriptFontFamilyMap m_pictographFontFamilyMap;
 };
 
 }
 
 #endif