Extend histogram, transfer ownership.

R=bdea

Fixed: 1140092
Change-Id: Ia00bf2f21dd41c4a69dc9d6e070ce0403ccd4e75
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2541804
Auto-Submit: Varun Khaneja <vakh@chromium.org>
Reviewed-by: Bettina Dea <bdea@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Commit-Queue: Varun Khaneja <vakh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828498}

tools/metrics/histograms/histograms_xml/password/histograms.xml

@@ -2402,8 +2402,8 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordProtection.PasswordProtectionResponseOrErrorCode"
-    enum="CombinedHttpResponseAndNetErrorCode" expires_after="2020-11-29">
-  <owner>vakh@chromium.org</owner>
+    enum="CombinedHttpResponseAndNetErrorCode" expires_after="2021-11-29">
+  <owner>bdea@chromium.org</owner>
   <owner>chrome-safebrowsing-alerts@google.com</owner>
   <summary>
     Response or error codes for PasswordProtectionRequest. Logged after chrome