| Index: Source/core/dom/MutationObserver.cpp | 
| diff --git a/Source/core/dom/MutationObserver.cpp b/Source/core/dom/MutationObserver.cpp | 
| index ba2d25a36b938692157e5cf01a8f9a5e25d45ae5..6f4fb9ec0fe39db4359629b189ef4fc822bebdda 100644 | 
| --- a/Source/core/dom/MutationObserver.cpp | 
| +++ b/Source/core/dom/MutationObserver.cpp | 
| @@ -137,7 +137,7 @@ void MutationObserver::observe(Node* node, const Dictionary& optionsDictionary, | 
| return; | 
| } | 
|  | 
| -    node->registerMutationObserver(this, options, attributeFilter); | 
| +    node->registerMutationObserver(*this, options, attributeFilter); | 
| } | 
|  | 
| Vector<RefPtr<MutationRecord> > MutationObserver::takeRecords() | 
|  |