Simplify watched selector handling and remove remnants of user stylesheets

Source/core/css/resolver/StyleResolver.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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 213 matching lines @@
     void adjustRenderStyle(StyleResolverState&, Element*);
 
     void appendCSSStyleSheet(CSSStyleSheet*);
 
     void collectPseudoRulesForElement(Element*, ElementRuleCollector&, PseudoId, unsigned rulesToInclude);
     void matchUARules(ElementRuleCollector&, RuleSet*);
     void matchAuthorRules(Element*, ElementRuleCollector&, bool includeEmptyRules);
     void matchAuthorRulesForShadowHost(Element*, ElementRuleCollector&, bool includeEmptyRules, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>& resolvers, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>& resolversInShadowTree);
     void matchAllRules(StyleResolverState&, ElementRuleCollector&, bool includeSMILProperties);
     void matchUARules(ElementRuleCollector&);
-    // FIXME: watched selectors should be implemented using injected author stylesheets: http://crbug.com/316960
-    void matchWatchSelectorRules(ElementRuleCollector&);
     void collectFeatures();
     void resetRuleFeatures();
 
     bool fastRejectSelector(const RuleData&) const;
 
     void applyMatchedProperties(StyleResolverState&, const MatchResult&);
     bool applyAnimatedProperties(StyleResolverState&, Element* animatingElement);
+    void applyCallbackSelectors(StyleResolverState&);
 
     void resolveScopedStyles(const Element*, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>&);
     void collectScopedResolversForHostedShadowTrees(const Element*, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>&);
 
     enum StyleApplicationPass {
         HighPriorityProperties,
         LowPriorityProperties
     };
     template <StyleResolver::StyleApplicationPass pass>
     static inline CSSPropertyID firstCSSPropertyId();
     template <StyleResolver::StyleApplicationPass pass>
     static inline CSSPropertyID lastCSSPropertyId();
     template <StyleResolver::StyleApplicationPass pass>
     static inline bool isPropertyForPass(CSSPropertyID);
     template <StyleApplicationPass pass>
     void applyMatchedProperties(StyleResolverState&, const MatchResult&, bool important, int startIndex, int endIndex, bool inheritedOnly);
     template <StyleApplicationPass pass>
-    void applyProperties(StyleResolverState&, const StylePropertySet* properties, StyleRule*, bool isImportant, bool inheritedOnly, PropertyWhitelistType = PropertyWhitelistNone);
+    void applyProperties(StyleResolverState&, const StylePropertySet* properties, bool isImportant, bool inheritedOnly, PropertyWhitelistType = PropertyWhitelistNone);
     template <StyleApplicationPass pass>
     void applyAnimatedProperties(StyleResolverState&, const WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<Interpolation> >&);
     template <StyleResolver::StyleApplicationPass pass>
     void applyAllProperty(StyleResolverState&, CSSValue*);
 
     void matchPageRules(MatchResult&, RuleSet*, bool isLeftPage, bool isFirstPage, const String& pageName);
     void matchPageRulesForList(WillBeHeapVector<RawPtrWillBeMember<StyleRulePage> >& matchedRules, const WillBeHeapVector<RawPtrWillBeMember<StyleRulePage> >&, bool isLeftPage, bool isFirstPage, const String& pageName);
     void collectViewportRules();
 
     bool isLeftPage(int pageIndex) const;
@@ skipping 21 matching lines @@
 
     OwnPtrWillBeMember<ViewportStyleResolver> m_viewportStyleResolver;
 
     WillBeHeapListHashSet<RawPtrWillBeMember<CSSStyleSheet>, 16> m_pendingStyleSheets;
 
     // FIXME: The entire logic of collecting features on StyleResolver, as well as transferring them
     // between various parts of machinery smells wrong. This needs to be better somehow.
     RuleFeatureSet m_features;
     OwnPtrWillBeMember<RuleSet> m_siblingRuleSet;
     OwnPtrWillBeMember<RuleSet> m_uncommonAttributeRuleSet;
-
-    // FIXME: watched selectors should be implemented using injected author stylesheets: http://crbug.com/316960

[rune, 2014/08/14 19:50:31]

Add BUG=316960 to the description so that the commit will be added to that
issue.

[Timothy Loh, 2014/08/15 09:40:39]

Done.

     OwnPtrWillBeMember<RuleSet> m_watchedSelectorsRules;
     TreeBoundaryCrossingRules m_treeBoundaryCrossingRules;
 
     bool m_needCollectFeatures;
     bool m_printMediaType;
 
     StyleResourceLoader m_styleResourceLoader;
 
     unsigned m_styleSharingDepth;
     WillBeHeapVector<OwnPtrWillBeMember<StyleSharingList>, styleSharingMaxDepth> m_styleSharingLists;
 
     OwnPtr<StyleResolverStats> m_styleResolverStats;
     OwnPtr<StyleResolverStats> m_styleResolverStatsTotals;
     unsigned m_styleResolverStatsSequence;
 
     // Use only for Internals::updateStyleAndReturnAffectedElementCount.
     unsigned m_accessCount;
 };
 
 } // namespace blink
 
 #endif // StyleResolver_h