Remove CSSCharsetRule

Source/core/css/StyleSheetContents.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 79 matching lines @@
 
     void setHasSyntacticallyValidCSSHeader(bool isValidCss);
     bool hasSyntacticallyValidCSSHeader() const { return m_hasSyntacticallyValidCSSHeader; }
 
     void setHasFontFaceRule(bool b) { m_hasFontFaceRule = b; }
     bool hasFontFaceRule() const { return m_hasFontFaceRule; }
     void findFontFaceRules(WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> >& fontFaceRules);
 
     void parserAddNamespace(const AtomicString& prefix, const AtomicString& uri);
     void parserAppendRule(PassRefPtrWillBeRawPtr<StyleRuleBase>);
-    void parserSetEncodingFromCharsetRule(const String& encoding);
     void parserSetUsesRemUnits(bool b) { m_usesRemUnits = b; }
 
     void clearRules();
 
-    bool hasCharsetRule() const { return !m_encodingFromCharsetRule.isNull(); }
-    String encodingFromCharsetRule() const { return m_encodingFromCharsetRule; }
-    // Rules other than @charset and @import.
+    // Rules other than @import.
     const WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> >& childRules() const { return m_childRules; }
     const WillBeHeapVector<RefPtrWillBeMember<StyleRuleImport> >& importRules() const { return m_importRules; }
 
     void notifyLoadedSheet(const CSSStyleSheetResource*);
 
     StyleSheetContents* parentStyleSheet() const;
     StyleRuleImport* ownerRule() const { return m_ownerRule; }
     void clearOwnerRule() { m_ownerRule = nullptr; }
 
     // Note that href is the URL that started the redirect chain that led to
@@ skipping 44 matching lines @@
     void clearRuleSet();
 
     void trace(Visitor*);
 
 private:
     StyleSheetContents(StyleRuleImport* ownerRule, const String& originalURL, const CSSParserContext&);
     StyleSheetContents(const StyleSheetContents&);
     void notifyRemoveFontFaceRule(const StyleRuleFontFace*);
 
     Document* clientSingleOwnerDocument() const;
-    void clearCharsetRule();
 
     RawPtrWillBeMember<StyleRuleImport> m_ownerRule;
 
     String m_originalURL;
 
-    String m_encodingFromCharsetRule;
     WillBeHeapVector<RefPtrWillBeMember<StyleRuleImport> > m_importRules;
     WillBeHeapVector<RefPtrWillBeMember<StyleRuleBase> > m_childRules;
     typedef HashMap<AtomicString, AtomicString> PrefixNamespaceURIMap;
     PrefixNamespaceURIMap m_namespaces;
 
     bool m_hasSyntacticallyValidCSSHeader : 1;
     bool m_didLoadErrorOccur : 1;
     bool m_usesRemUnits : 1;
     bool m_isMutable : 1;
     bool m_isInMemoryCache : 1;
     bool m_hasFontFaceRule : 1;
     bool m_hasMediaQueries : 1;
     bool m_hasSingleOwnerDocument : 1;
 
     CSSParserContext m_parserContext;
 
     WillBeHeapHashSet<RawPtrWillBeWeakMember<CSSStyleSheet> > m_loadingClients;
     WillBeHeapHashSet<RawPtrWillBeWeakMember<CSSStyleSheet> > m_completedClients;
 
     OwnPtrWillBeMember<RuleSet> m_ruleSet;
 };
 
 } // namespace
 
 #endif