| Index: third_party/WebKit/Source/core/dom/DOMNodeIds.h
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| diff --git a/third_party/WebKit/Source/core/dom/DOMNodeIds.h b/third_party/WebKit/Source/core/dom/DOMNodeIds.h
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| index 15bb91f13db1d45355d55d7538b2e146338e8bcd..2985a157e25dd2ee071b311733ce9ae892fa43ab 100644
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| --- a/third_party/WebKit/Source/core/dom/DOMNodeIds.h
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| +++ b/third_party/WebKit/Source/core/dom/DOMNodeIds.h
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| @@ -12,14 +12,18 @@
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|  
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|  namespace blink {
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|  
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| -DECLARE_WEAK_IDENTIFIER_MAP(Node);
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| +using DOMNodeId = uint64_t;
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| +
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| +DECLARE_WEAK_IDENTIFIER_MAP(Node, DOMNodeId);
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| +
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| +static const DOMNodeId kInvalidDOMNodeId = 0;
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|  
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|  class CORE_EXPORT DOMNodeIds {
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|    STATIC_ONLY(DOMNodeIds);
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|  
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|   public:
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| -  static int IdForNode(Node*);
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| -  static Node* NodeForId(int id);
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| +  static DOMNodeId IdForNode(Node*);
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| +  static Node* NodeForId(DOMNodeId);
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|  };
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|  
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|  }  // namespace blink
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| 
 |