Fix selector namespace prefix resolution.

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

Index: third_party/WebKit/Source/core/css/CSSSelectorList.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSSelectorList.cpp b/third_party/WebKit/Source/core/css/CSSSelectorList.cpp
index 83626a2d18c6d5bb2ffac4851aa402ce63eec60d..361d99bcd219bf353b2c9d8e144440cfaae9278b 100644
--- a/third_party/WebKit/Source/core/css/CSSSelectorList.cpp
+++ b/third_party/WebKit/Source/core/css/CSSSelectorList.cpp
@@ -151,16 +151,6 @@ static bool forEachSelector(const Functor& functor, const CSSSelectorList* selec
     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 {