Corrected specificity for :not for default @namespace.

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

Index: third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp b/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
index d88f00a66786eacb00eb5bd6dea8613a4a17e993..0b20b9ecb2929614521e464e83d3b84e42682940 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
@@ -272,6 +272,11 @@ std::unique_ptr<CSSParserSelector> CSSSelectorParser::consumeCompoundSelector(
     return CSSParserSelector::create(
         QualifiedName(namespacePrefix, elementName, namespaceURI));
   }
+  // TODO(rune@opera.com): Prepending a type selector to the compound is
+  // unnecessary if this compound is an argument to a pseudo selector like
+  // :not(), since a type selector will be prepended at the top level of the
+  // selector if necessary. We need to propagate that context information here
+  // to tell if we are at the top level.
   prependTypeSelectorIfNeeded(namespacePrefix, elementName,
                               compoundSelector.get());
   return splitCompoundAtImplicitShadowCrossingCombinator(