Extend Login.TokenCheckResponseTime expiration date

Also transfer ownership to rsorokin@ and cros-oac@

Fixed: 1130645
Change-Id: I441ac889d92c17197a88f90b30fa9af220e3d264
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2445469
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Reviewed-by: Greg Levin <glevin@chromium.org>
Reviewed-by: Weilun Shi <sweilun@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815098}

tools/metrics/histograms/histograms_xml/login/histograms.xml

@@ -114,8 +114,9 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Login.OfflineSuccess.Attempts" units="units"
-    expires_after="2021-02-28">
-  <owner>glevin@chromium.org</owner>
+    expires_after="2021-03-15">
+  <owner>rsorokin@chromium.org</owner>
+  <owner>cros-oac@google.com</owner>
   <summary>
     On offline login success, records number of attempts, including success.
   </summary>
@@ -200,8 +201,9 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Login.TokenCheckResponseTime" units="ms"
-    expires_after="2020-11-01">
-  <owner>glevin@chromium.org</owner>
+    expires_after="2021-04-01">
+  <owner>rsorokin@chromium.org</owner>
+  <owner>cros-oac@google.com</owner>
   <summary>
     Time between sending a request to, and receiving a reply from, GAIA token
     endpoint to validate TokenInfo.