[Passwords] Extend Expiring Histograms

This change extends expiring PasswordManager and PasswordGeneration
histograms and marks "PasswordManager.OtherPossibleUsernamesUsage" as
obsolete.

R=chromium-metrics-reviews@google.com

Fixed: 1165103, 1165104, 1165114, 1165115, 1165116, 1165118, 1165119
Change-Id: Ib2bd28896c05ddb9c24fe7f191299a7e58e39321
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2632651
Auto-Submit: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Brian White <bcwhite@chromium.org>
Reviewed-by: Brian White <bcwhite@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845771}

tools/metrics/histograms/enums.xml

@@ -56563,6 +56563,9 @@ Called by update_net_trust_anchors.py.-->
 </enum>
 
 <enum name="OtherPossibleUsernamesUsage">
+  <obsolete>
+    Obsolete since M90.
+  </obsolete>
   <int value="0" label="Nothing to Autofill"/>
   <int value="1" label="No other possible usernames"/>
   <int value="2" label="Other possible usernames present, but none were shown"/>

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

@@ -91,7 +91,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordGeneration.SubmissionAvailableEvent"
-    enum="PasswordSubmissionEvent" expires_after="M90">
+    enum="PasswordSubmissionEvent" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>kolos@chromium.org</owner>
   <summary>
@@ -113,7 +113,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordGeneration.UploadStarted" enum="Boolean"
-    expires_after="M90">
+    expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>kolos@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
@@ -959,7 +959,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.CredentialsWithDuplicates" units="units"
-    expires_after="M90">
+    expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -974,7 +974,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.CredentialsWithMismatchedDuplicates"
-    units="units" expires_after="M90">
+    units="units" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -1074,7 +1074,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.FilledCredentialWasFromAndroidApp"
-    enum="PasswordManagerFilledAndroidCredentials" expires_after="M90">
+    enum="PasswordManagerFilledAndroidCredentials" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -1119,7 +1119,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.FillSuggestionsIncludeAndroidAppCredentials"
-    enum="PasswordManagerOfferedAndroidCredentials" expires_after="M90">
+    enum="PasswordManagerOfferedAndroidCredentials" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -1155,7 +1155,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.FormDataDeserializationStatus"
-    enum="FormDataDeserializationStatus" expires_after="M90">
+    enum="FormDataDeserializationStatus" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -1166,7 +1166,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.GeneratedFormHasNoFormManager"
-    enum="BooleanFormManager" expires_after="M90">
+    enum="BooleanFormManager" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>kolos@chromium.org</owner>
   <summary>
@@ -1668,6 +1668,9 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="PasswordManager.OtherPossibleUsernamesUsage"
     enum="OtherPossibleUsernamesUsage" expires_after="M90">
+  <obsolete>
+    Obsolete since M90.
+  </obsolete>
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -1870,7 +1873,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.ReauthToAccessPasswordInSettings"
-    enum="PasswordManager.ReauthResult" expires_after="M90">
+    enum="PasswordManager.ReauthResult" expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>vasilii@chromium.org</owner>
   <summary>
@@ -2046,7 +2049,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="PasswordManager.SubmittedFormType" enum="PasswordFormType"
-    expires_after="M90">
+    expires_after="M95">
   <owner>jdoerrie@chromium.org</owner>
   <owner>kolos@chromium.org</owner>
   <summary>