[sb] Transfer histogram ownership to Varun.

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 7fae1ccb04a8de62004672f7e5b9ec03e07f33a7..93ae61957d741badd69122c10c6d317e2157a784 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -58799,7 +58799,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.AddPrefixes">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The number of add prefixes stored in the database after the last update.
   </summary>
@@ -58840,7 +58840,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 12/2014. Moved to SB2.DatabaseSizeKilobytes.Browse.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the browsing SafeBrowsing database file on disk in kilobytes,
     after an update has occurred.
@@ -58848,7 +58848,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.BuildFilter" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time that it took to regenerate the filter after we have received all
     the update chunks.
@@ -58868,7 +58868,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.BuildReadKilobytes" units="KB">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The number of kilobytes read by the browser process during the filter
     generation phase.
@@ -58876,7 +58876,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.BuildReadOperations">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The number of read operations issued by the browser process during the
     filter generation phase.
@@ -58896,7 +58896,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.BuildWriteKilobytes" units="KB">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The number of kilobytes written by the browser process during the filter
     generation phase.
@@ -58904,7 +58904,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.BuildWriteOperations">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The number of write operations issued by the browser process during the
     filter generation phase.
@@ -58912,7 +58912,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.ChunkInsert" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time that it takes to write one redirect URL (which can contain multiple
     chunks) to the database.
@@ -58920,14 +58920,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.ChunkRequest" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The network time between the request and response for a chunk.
   </summary>
 </histogram>
 
 <histogram name="SB2.ChunkSize" units="bytes">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The size of one chunk URL.</summary>
 </histogram>
 
@@ -58941,7 +58941,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.DatabaseFailure" enum="SB2DatabaseFailure">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Track failures when updating the safe-browsing database.</summary>
 </histogram>
 
@@ -58949,14 +58949,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Replaced by SB2.BrowseDatabaseKilobytes.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the SafeBrowsing database file on disk in kilobytes.
   </summary>
 </histogram>
 
 <histogram name="SB2.DatabaseOpen" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time it takes to initialize the SafeBrowsing storage backend, in
     milliseconds.
@@ -58973,7 +58973,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.DatabaseUpdateKilobytes" units="KB">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the update file before merging with the database file, in
     kilobytes.
@@ -58981,7 +58981,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.Delay" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time that SafeBrowsing actually delayed the browsing experience. It
     records the difference between the time when Chrome would have started
@@ -59007,7 +59007,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.DownloadChecks" enum="SB2DownloadChecks">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     Records results of SafeBrowsing download check, including both url check and
     downloaded file hash check.
@@ -59018,7 +59018,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 12/2014. Moved to SB2.DatabaseSizeKilobytes.Download.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the downloads SafeBrowsing database file on disk in kilobytes,
     after an update has occurred.
@@ -59031,19 +59031,19 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
     corresponding to a download, which may or may not correspond to the total
     duration of a download.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The time it takes for a download to finish.</summary>
 </histogram>
 
 <histogram name="SB2.DownloadHashCheckDuration" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time it takes for SafeBrowsing to check hash of a download file.
   </summary>
 </histogram>
 
 <histogram name="SB2.DownloadUrlCheckDuration" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The time it takes for SafeBrowsing to check a download url.</summary>
 </histogram>
 
@@ -59080,7 +59080,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.FilterCheck" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time that it took to check a URL against our in-memory filter.
   </summary>
@@ -59095,7 +59095,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.FilterLoad" enum="SB2FilterLoad">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Which filter file the database loaded from disk.</summary>
 </histogram>
 
@@ -59142,7 +59142,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.FormatEvent" enum="SB2FormatEvent">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     Collection of boolean events for SafeBrowsingFileStore instances.  Includes
     corruptions detected, old versions detected, and various failures detected.
@@ -59342,7 +59342,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.Network" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time that it took to receive a response from the Google SafeBrowsing
     servers for a GetHash request.
@@ -59353,12 +59353,12 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 7/2014. No longer generated.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Size of v1 database deleted from client profile.</summary>
 </histogram>
 
 <histogram name="SB2.OutShardShifts">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     Indicates how sharded safe-browsing on-disk stores are.  Values like 0 to 4
     are reasonable.
@@ -59416,7 +59416,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.PrefixSetBitsPerPrefix" units="bits">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the PrefixSet storage in bits, divided by the number of prefixes
     represented.  Should almost always be 16.
@@ -59438,12 +59438,12 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 01/2014. Replaced by suffixed SB2.PrefixSetSizeKilobytes.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The size of one of the PrefixSet files in kilobytes.</summary>
 </histogram>
 
 <histogram name="SB2.PrefixSetLoad" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Time to load one of the PrefixSet files.</summary>
 </histogram>
 
@@ -59468,7 +59468,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.PrefixSetSizeKilobytes" units="KB">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of one of the PrefixSet files in kilobytes. Logged after a database
     update has occurred and the PrefixSet has been flushed to disk (once a few
@@ -59520,12 +59520,12 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.PrefixSetVersionRead">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Version read from one of the PrefixSet files.</summary>
 </histogram>
 
 <histogram name="SB2.PrefixSetWrite" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Time to store one of the PrefixSet files.</summary>
 </histogram>
 
@@ -59646,7 +59646,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 12/2014. Merged into SB2.PrefixSetWrite.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     Time to store the Side Effect Free Whitelist PrefixSet file. Note: this
     histogram was intended to be stored as
@@ -59660,7 +59660,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
     Deprecated 12/2014. Moved to
     SB2.DatabaseSizeKilobytes.SideEffectFreeWhitelist.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the Side Effect Free Whitelist SaafeBrowsing database file on
     disk in kilobytes, after an update has occurred.
@@ -59672,7 +59672,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
     Deprecated 12/2014. Moved to
     SB2.PrefixSetSizeKilobytes.SideEffectFreeWhitelist.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The size of the Side Effect Free Whitelist PrefixSet file in kilobytes,
     after an udpate has occurred.
@@ -59683,7 +59683,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 12/2014. Merged into SB2.PrefixSetLoad.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Time to load the Side Effect Free Whitelist PrefixSet file.</summary>
 </histogram>
 
@@ -59692,24 +59692,24 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     Deprecated 4/2015.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The instantiation status of the SideEffectFreeWhitelist.</summary>
 </histogram>
 
 <histogram name="SB2.StoreVersionRead">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Version read from the store file.</summary>
 </histogram>
 
 <histogram name="SB2.SubPrefixes">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The number of sub prefixes stored in the database after the last update.
   </summary>
 </histogram>
 
 <histogram name="SB2.Update" units="ms">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     The time from the receipt of the update request to the receipt of the final
     update chunk.
@@ -59717,17 +59717,17 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.UpdateRequestSize" units="bytes">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The payload size of update requests to the server.</summary>
 </histogram>
 
 <histogram name="SB2.UpdateResult" enum="SB2UpdateResult">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>Result from trying to update the SafeBrowsing data.</summary>
 </histogram>
 
 <histogram name="SB2.UpdateSize" units="bytes">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The size of all the chunk URLs in an update response.</summary>
 </histogram>
 
@@ -59754,7 +59754,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="SB2.UpdateUrls">
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>The number of chunk URLs in an update response.</summary>
 </histogram>
 
@@ -59762,7 +59762,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <obsolete>
     The operation this is tracking has been deleted as of 09/2014.
   </obsolete>
-  <owner>shess@chromium.org</owner>
+  <owner>vakh@chromium.org</owner>
   <summary>
     Older versions of the safe-browsing code incorrectly added additional
     SBPrefix items when receiving full hashes.  This caused errors when