[Passwords] Extend more histograms

This change extends the PasswordManager.BulkCheck.CanceledCredentials
and PasswordManager.OsPasswordStatus histograms.

R=chromium-metrics-reviews@google.com

Fixed: 1160745, 1167775
Change-Id: I2310afe4516b85fdbe9927cd03df267daf7d30ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2637696
Auto-Submit: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Robert Kaplow <rkaplow@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844764}

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

@@ -749,7 +749,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.BulkCheck.CanceledCredentials"
-    units="credentials" expires_after="2021-02-01">
+    units="credentials" expires_after="2021-07-01">
   <owner>vasilii@chromium.org</owner>
   <owner>jdoerrie@chromium.org</owner>
   <summary>
@@ -1650,7 +1650,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.OsPasswordStatus"
-    enum="PasswordManagerOsPasswordStatus" expires_after="2021-02-28">
+    enum="PasswordManagerOsPasswordStatus" expires_after="2021-07-28">
   <owner>vasilii@chromium.org</owner>
   <owner>jdoerrie@chromium.org</owner>
   <summary>