Split compound selector after consume finished.

third_party/WebKit/Source/core/css/parser/CSSParserSelector.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 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 62 matching lines @@
         // Example:
         //     @namespace "http://www.w3.org/2000/svg";
         //     svg:not(:root) { ...
         if (m_selector->tagQName().localName() == starAtom)
             return m_tagHistory->isSimple();
     }
 
     return false;
 }
 
-void CSSParserSelector::insertTagHistory(CSSSelector::Relation before, PassOwnPtr<CSSParserSelector> selector, CSSSelector::Relation after)
-{
-    if (m_tagHistory)
-        selector->setTagHistory(m_tagHistory.release());
-    setRelation(before);
-    selector->setRelation(after);
-    m_tagHistory = selector;
-}
-
 void CSSParserSelector::appendTagHistory(CSSSelector::Relation relation, PassOwnPtr<CSSParserSelector> selector)
 {
     CSSParserSelector* end = this;
     while (end->tagHistory())
         end = end->tagHistory();
     end->setRelation(relation);
     end->setTagHistory(selector);
 }
 
+PassOwnPtr<CSSParserSelector> CSSParserSelector::releaseTagHistory()
+{
+    setRelation(CSSSelector::SubSelector);
+    return m_tagHistory.release();
+}
+
 void CSSParserSelector::prependTagSelector(const QualifiedName& tagQName, bool isImplicit)
 {
     OwnPtr<CSSParserSelector> second = CSSParserSelector::create();
     second->m_selector = m_selector.release();
     second->m_tagHistory = m_tagHistory.release();
     m_tagHistory = second.release();
     m_selector = adoptPtr(new CSSSelector(tagQName, isImplicit));
 }
 
-bool CSSParserSelector::hasHostPseudoSelector() const
+bool CSSParserSelector::isHostPseudoSelector() const
 {
-    for (CSSParserSelector* selector = const_cast<CSSParserSelector*>(this); selector; selector = selector->tagHistory()) {
-        if (selector->pseudoType() == CSSSelector::PseudoHost || selector->pseudoType() == CSSSelector::PseudoHostContext)
-            return true;
-    }
-    return false;
+    return pseudoType() == CSSSelector::PseudoHost || pseudoType() == CSSSelector::PseudoHostContext;
 }
 
 } // namespace blink