tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 778bde8307e04d91858887fe90fe838ec55fbd2d..d17a6493272a3b3263a65e90b894ad71b0a8107a 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -54077,6 +54077,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="ResourcePrefetchPredictor.CachePattern"
+    enum="HttpCachePattern">
+  <owner>alexilin@chromium.org</owner>
+  <summary>
+    Like HttpCache.Pattern but only for requests made during speculative
+    prefetch. Logged per successful request.
+  </summary>
+</histogram>
+
 <histogram name="ResourcePrefetchPredictor.DatabaseReadiness" units="%">
   <owner>alexilin@chromium.org</owner>
   <summary>
@@ -54506,6 +54515,24 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="ResourcePrefetchPredictor.PrefetchedCount" units="count">
+  <owner>alexilin@chromium.org</owner>
+  <summary>
+    The count of successfully prefetched subresources for a single page.
+    Recorded after all subresource prefetches have reached a terminal
+    success/failure state.
+  </summary>
+</histogram>
+
+<histogram name="ResourcePrefetchPredictor.PrefetchedSizeKB" units="KB">
+  <owner>alexilin@chromium.org</owner>
+  <summary>
+    The total amount of data consumed by predictor for a single page. Only
+    successfully finished requests taken into account. Recorded after all
+    subresource prefetches have reached a terminal success/failure state.
+  </summary>
+</histogram>
+
 <histogram name="ResourcePrefetchPredictor.ReportingEvent"
     enum="ResourcePrefetchPredictorReportingEvent">
   <owner>zhenw@chromium.org</owner>