Removed add/removeScopedStyleResolver from StyleEngine

Source/core/dom/StyleEngine.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 150 matching lines @@
     void didDetach();
     bool shouldClearResolver() const;
     void resolverChanged(StyleResolverUpdateMode);
     unsigned resolverAccessCount() const;
 
     void markDocumentDirty();
 
     PassRefPtrWillBeRawPtr<CSSStyleSheet> createSheet(Element*, const String& text, TextPosition startPosition, bool createdByParser);
     void removeSheet(StyleSheetContents*);
 
-    void addScopedStyleResolver(const ScopedStyleResolver* resolver) { m_scopedStyleResolvers.add(resolver); }
-    void removeScopedStyleResolver(const ScopedStyleResolver* resolver) { m_scopedStyleResolvers.remove(resolver); }
-    bool hasOnlyScopedResolverForDocument() const { return m_scopedStyleResolvers.size() == 1; }
+    bool onlyDocumentHasStyles() const { return m_activeTreeScopes.isEmpty(); }
     void collectScopedStyleFeaturesTo(RuleFeatureSet&) const;
 
     virtual void trace(Visitor*) override;
 
 private:
     // CSSFontSelectorClient implementation.
     virtual void fontsNeedUpdate(CSSFontSelector*) override;
 
 private:
     StyleEngine(Document&);
@@ skipping 39 matching lines @@
 
     mutable WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> > m_injectedAuthorStyleSheets;
     mutable bool m_injectedStyleSheetCacheValid;
 
     WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> > m_authorStyleSheets;
 
     OwnPtrWillBeMember<DocumentStyleSheetCollection> m_documentStyleSheetCollection;
 
     typedef WillBeHeapHashMap<RawPtrWillBeWeakMember<TreeScope>, OwnPtrWillBeMember<ShadowTreeStyleSheetCollection> > StyleSheetCollectionMap;
     StyleSheetCollectionMap m_styleSheetCollectionMap;
-    typedef WillBeHeapHashSet<RawPtrWillBeMember<const ScopedStyleResolver> > ScopedStyleResolverSet;
-    ScopedStyleResolverSet m_scopedStyleResolvers;
 
     bool m_documentScopeDirty;
     TreeScopeSet m_dirtyTreeScopes;
     TreeScopeSet m_activeTreeScopes;
 
     String m_preferredStylesheetSetName;
     String m_selectedStylesheetSetName;
 
     bool m_usesSiblingRules;
     bool m_usesSiblingRulesOverride;
     bool m_usesFirstLineRules;
     bool m_usesFirstLetterRules;
     bool m_usesRemUnits;
     unsigned m_maxDirectAdjacentSelectors;
 
     bool m_ignorePendingStylesheets;
     bool m_didCalculateResolver;
     OwnPtrWillBeMember<StyleResolver> m_resolver;
 
     RefPtrWillBeMember<CSSFontSelector> m_fontSelector;
 
     WillBeHeapHashMap<AtomicString, RawPtrWillBeMember<StyleSheetContents> > m_textToSheetCache;
     WillBeHeapHashMap<RawPtrWillBeMember<StyleSheetContents>, AtomicString> m_sheetToTextCache;
 };
 
 }
 
 #endif