| Index: third_party/WebKit/Source/core/dom/IntersectionObservation.h
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| diff --git a/third_party/WebKit/Source/core/dom/IntersectionObservation.h b/third_party/WebKit/Source/core/dom/IntersectionObservation.h
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| index 9388af98ee677bdec9be7d6433dc07a2a9506635..d8e69ef09417e9662ecf53708ae47042acabf789 100644
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| --- a/third_party/WebKit/Source/core/dom/IntersectionObservation.h
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| +++ b/third_party/WebKit/Source/core/dom/IntersectionObservation.h
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| @@ -5,6 +5,7 @@
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|  #ifndef IntersectionObservation_h
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|  #define IntersectionObservation_h
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|  
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| +#include "core/dom/DOMHighResTimeStamp.h"
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|  #include "platform/geometry/LayoutRect.h"
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|  #include "platform/heap/Handle.h"
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|  
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| @@ -32,7 +33,7 @@ public:
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|      unsigned lastThresholdIndex() const { return m_lastThresholdIndex; }
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|      void setLastThresholdIndex(unsigned index) { m_lastThresholdIndex = index; }
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|      bool shouldReportRootBounds() const { return m_shouldReportRootBounds; }
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| -    void computeIntersectionObservations(double timestamp);
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| +    void computeIntersectionObservations(DOMHighResTimeStamp);
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|      void disconnect();
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|      void clearRootAndRemoveFromTarget();
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|  
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| 
 |