CSSStyleSheet::insertRule should respect the default namespace

Source/core/css/parser/CSSParserImpl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSParserImpl_h
 #define CSSParserImpl_h
 
 #include "core/CSSPropertyNames.h"
 #include "core/css/CSSProperty.h"
 #include "core/css/CSSPropertySourceData.h"
@@ skipping 66 matching lines @@
     // Returns whether the first encountered rule was valid
     template<typename T>
     bool consumeRuleList(CSSParserTokenRange, RuleListType, T callback);
 
     // These two functions update the range they're given
     PassRefPtrWillBeRawPtr<StyleRuleBase> consumeAtRule(CSSParserTokenRange&, AllowedRulesType);
     PassRefPtrWillBeRawPtr<StyleRuleBase> consumeQualifiedRule(CSSParserTokenRange&, AllowedRulesType);
 
     static PassRefPtrWillBeRawPtr<StyleRuleCharset> consumeCharsetRule(CSSParserTokenRange prelude);
     PassRefPtrWillBeRawPtr<StyleRuleImport> consumeImportRule(CSSParserTokenRange prelude);
-    PassRefPtrWillBeRawPtr<StyleRuleNamespace> consumeNamespaceRule(CSSParserTokenRange prelude); // This can set m_defaultNamespace
+    PassRefPtrWillBeRawPtr<StyleRuleNamespace> consumeNamespaceRule(CSSParserTokenRange prelude);
     PassRefPtrWillBeRawPtr<StyleRuleMedia> consumeMediaRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
     PassRefPtrWillBeRawPtr<StyleRuleSupports> consumeSupportsRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
     PassRefPtrWillBeRawPtr<StyleRuleViewport> consumeViewportRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
     PassRefPtrWillBeRawPtr<StyleRuleFontFace> consumeFontFaceRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
     PassRefPtrWillBeRawPtr<StyleRuleKeyframes> consumeKeyframesRule(bool webkitPrefixed, CSSParserTokenRange prelude, CSSParserTokenRange block);
     PassRefPtrWillBeRawPtr<StyleRulePage> consumePageRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
 
     PassRefPtrWillBeRawPtr<StyleRuleKeyframe> consumeKeyframeStyleRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
     PassRefPtrWillBeRawPtr<StyleRule> consumeStyleRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
 
     void consumeDeclarationList(CSSParserTokenRange, StyleRule::Type);
     void consumeDeclaration(CSSParserTokenRange, StyleRule::Type);
     void consumeDeclarationValue(CSSParserTokenRange, CSSPropertyID, bool important, StyleRule::Type);
 
     static PassOwnPtr<Vector<double>> consumeKeyframeKeyList(CSSParserTokenRange);
 
     // FIXME: Can we build StylePropertySets directly?
     // FIXME: Investigate using a smaller inline buffer
     WillBeHeapVector<CSSProperty, 256> m_parsedProperties;
     CSSParserContext m_context;
 
-    AtomicString m_defaultNamespace;
     RawPtrWillBeMember<StyleSheetContents> m_styleSheet;
 
     // For the inspector
     CSSParserObserverWrapper* m_observerWrapper;
 };
 
 } // namespace blink
 
 #endif // CSSParserImpl_h