| Index: Source/core/editing/MarkupAccumulator.h | 
| diff --git a/Source/core/editing/MarkupAccumulator.h b/Source/core/editing/MarkupAccumulator.h | 
| index a126567c964984d37ccf77fdc0d8edf375dd2c4e..e05e6c3b89e45766c4777c643bdc8a8cecf62072 100644 | 
| --- a/Source/core/editing/MarkupAccumulator.h | 
| +++ b/Source/core/editing/MarkupAccumulator.h | 
| @@ -97,7 +97,7 @@ protected: | 
| virtual void appendElement(StringBuilder&, Element*, Namespaces*); | 
| void appendOpenTag(StringBuilder&, Element*, Namespaces*); | 
| void appendCloseTag(StringBuilder&, Element*); | 
| -    void appendAttribute(StringBuilder&, Element*, const Attribute&, Namespaces*); | 
| +    virtual void appendAttribute(StringBuilder&, Element*, const Attribute&, Namespaces*); | 
| void appendCDATASection(StringBuilder&, const String&); | 
| void appendStartMarkup(StringBuilder&, const Node*, Namespaces*); | 
| bool shouldSelfClose(const Node*); | 
|  |