| Index: Source/core/xml/XPathExpression.idl | 
| diff --git a/Source/core/xml/XPathExpression.idl b/Source/core/xml/XPathExpression.idl | 
| index 7b881eaa62a9d5a8ccd8ede59bdb38561006d2c4..35ab9089439e80a55903c2acd40de36e6b5438a3 100644 | 
| --- a/Source/core/xml/XPathExpression.idl | 
| +++ b/Source/core/xml/XPathExpression.idl | 
| @@ -17,7 +17,10 @@ | 
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 
| * Boston, MA 02110-1301, USA. | 
| */ | 
| -interface XPathExpression { | 
| + | 
| +[ | 
| +    WillBeGarbageCollected | 
| +] interface XPathExpression { | 
| [RaisesException] XPathResult evaluate([Default=Undefined] optional Node contextNode, | 
| [Default=Undefined] optional unsigned short type, | 
| [Default=Undefined] optional XPathResult inResult); | 
|  |