Fix selector namespace prefix resolution.

third_party/WebKit/Source/core/css/CSSSelectorList.cpp

 /*
  * Copyright (C) 2008, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 133 matching lines @@
 static bool forEachSelector(const Functor& functor, const CSSSelectorList* selectorList)
 {
     for (const CSSSelector* selector = selectorList->first(); selector; selector = CSSSelectorList::next(*selector)) {
         if (forEachTagSelector(functor, *selector))
             return true;
     }
 
     return false;
 }
 
-bool CSSSelectorList::selectorsNeedNamespaceResolution()
-{
-    return forEachSelector([](const CSSSelector& selector) -> bool {
-        if (selector.match() != CSSSelector::Tag && !selector.isAttributeSelector())
-            return false;
-        const AtomicString& prefix = selector.isAttributeSelector() ? selector.attribute().prefix() : selector.tagQName().prefix();
-        return prefix != nullAtom && prefix != emptyAtom && prefix != starAtom;
-    }, this);
-}
-
 bool CSSSelectorList::selectorHasContentPseudo(size_t index) const
 {
     return forEachTagSelector([](const CSSSelector& selector) -> bool {
         return selector.relationIsAffectedByPseudoContent();
     }, selectorAt(index));
 }
 
 bool CSSSelectorList::selectorHasSlottedPseudo(size_t index) const
 {
     return forEachTagSelector([](const CSSSelector& selector) ->  bool {
         return selector.pseudoType() == CSSSelector::PseudoSlotted;
     }, selectorAt(index));
 }
 
 bool CSSSelectorList::selectorUsesDeepCombinatorOrShadowPseudo(size_t index) const
 {
     return forEachTagSelector([](const CSSSelector& selector) -> bool {
         return selector.relation() == CSSSelector::ShadowDeep || selector.pseudoType() == CSSSelector::PseudoShadow;
     }, selectorAt(index));
 }
 
 bool CSSSelectorList::selectorNeedsUpdatedDistribution(size_t index) const
 {
     return forEachTagSelector([](const CSSSelector& selector) -> bool {
         return selector.relationIsAffectedByPseudoContent() || selector.pseudoType() == CSSSelector::PseudoSlotted || selector.pseudoType() == CSSSelector::PseudoHostContext;
     }, selectorAt(index));
 }
 
 } // namespace blink