Add inline style in the element's scope.

Source/core/css/ElementRuleCollector.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 106 matching lines @@
     PassRefPtrWillBeRawPtr<StyleRuleList> matchedStyleRuleList();
     PassRefPtrWillBeRawPtr<CSSRuleList> matchedCSSRuleList();
 
     void collectMatchingRules(const MatchRequest&, bool matchingTreeBoundaryRules = false);
     void collectMatchingShadowHostRules(const MatchRequest&, bool matchingTreeBoundaryRules = false);
     void sortAndTransferMatchedRules();
     void clearMatchedRules();
     void addElementStyleProperties(const StylePropertySet*, bool isCacheable = true);
     void finishAddingUARules() { m_result.finishAddingUARules(); }
     void finishAddingAuthorRulesForTreeScope() { m_result.finishAddingAuthorRulesForTreeScope(); }
+    bool isCollectingForPseudoElement() const { return m_pseudoStyleRequest.pseudoId != NOPSEUDO; }
 
 private:
     template<typename RuleDataListType>
     void collectMatchingRulesForList(const RuleDataListType*, const MatchRequest&);
 
     void didMatchRule(const RuleData&, const SelectorChecker::MatchResult&, const MatchRequest&);
 
     template<class CSSRuleCollection>
     CSSRule* findStyleRule(CSSRuleCollection*, StyleRule*);
     void appendCSSOMWrapperForRule(CSSStyleSheet*, StyleRule*);
@@ skipping 19 matching lines @@
 
     // Output.
     RefPtrWillBeMember<StaticCSSRuleList> m_cssRuleList;
     RefPtrWillBeMember<StyleRuleList> m_styleRuleList;
     MatchResult m_result;
 };
 
 } // namespace blink
 
 #endif // ElementRuleCollector_h