| Index: Source/core/dom/DocumentFragment.h
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| diff --git a/Source/core/dom/DocumentFragment.h b/Source/core/dom/DocumentFragment.h
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| index 477222f26d5f6fa66f658b364030e245d669dab7..a87795ed3c036272d78064efba9a2ae876366ab1 100644
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| --- a/Source/core/dom/DocumentFragment.h
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| +++ b/Source/core/dom/DocumentFragment.h
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| @@ -47,6 +47,8 @@ private:
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|      virtual NodeType nodeType() const OVERRIDE FINAL;
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|      virtual PassRefPtrWillBeRawPtr<Node> cloneNode(bool deep = true) OVERRIDE;
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|      virtual bool childTypeAllowed(NodeType) const OVERRIDE;
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| +
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| +    bool isDocumentFragment() const WTF_DELETED_FUNCTION; // Hide to catch useless calls.
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|  };
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|  
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|  DEFINE_NODE_TYPE_CASTS(DocumentFragment, isDocumentFragment());
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| 
 |