| Index: tools/metrics/histograms/histograms.xml
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| diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
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| index d31508f1d538e3b74d765ac17a79b93ba24f201b..098c6880d1306249bde40f9e0c159765895e3c14 100644
 | 
| --- a/tools/metrics/histograms/histograms.xml
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| +++ b/tools/metrics/histograms/histograms.xml
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| @@ -49666,6 +49666,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
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|    </summary>
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|  </histogram>
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|  
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| +<histogram name="WebCore.DistillabilityUs" units="microseconds">
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| +  <owner>wychen@chromium.org</owner>
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| +  <summary>
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| +    The time spent on collecting the statistics of the document in the main
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| +    frame. These statistics would be used as features to classify whether the
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| +    page is suitable for DOM distiller.
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| +  </summary>
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| +</histogram>
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| +
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|  <histogram name="WebCore.Document.execCommand" enum="MappedEditingCommands">
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|    <owner>yoichio@chromium.org</owner>
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|    <summary>
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| 
 |