[AF] Update histograms.xml for FidoAuthentication strike database

The FidoAuthenticationStrikeDatabase was added in
https://chromium-review.googlesource.com/c/chromium/src/+/1824362.
However, the "Autofill.StrikeDatabase.NthStrikeAdded" and
"Autofill.StrikeDatabase.StrikesPresentWhenStrikeExpired" histograms
are part of strike_database_integrator_base.cc, which all
project-specific Autofill strike databases inherit from.
As a result, CL 1824362 missed updating histograms.xml at the time,
since it was the superclass doing new automatic logging.

Change-Id: Ie791e52dfd51139986553e29230ad23960ee46f4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2437018
Commit-Queue: Jared Saul <jsaul@google.com>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#811896}

tools/metrics/histograms/histograms_xml/autofill/histograms.xml

@@ -1514,25 +1514,15 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
   </summary>
 </histogram>
 
-<histogram name="Autofill.StrikeDatabase.NthStrikeAdded.CreditCardSave"
-    units="strikes" expires_after="2021-01-31">
-  <owner>jsaul@google.com</owner>
-  <owner>annelim@google.com</owner>
-  <summary>
-    Records the number of &quot;strikes&quot; a given card has, when a user
-    dismisses a prompt to save a new credit card. The strike count is
-    incremented each time the user dismisses the prompt.
-  </summary>
-</histogram>
+<histogram name="Autofill.StrikeDatabase.NthStrikeAdded" units="strikes"
+    expires_after="2021-01-31">
+<!-- Name completed by histogram_suffixes name="AutofillStrikeDatabaseProjectType" -->
 
-<histogram name="Autofill.StrikeDatabase.NthStrikeAdded.LocalCardMigration"
-    units="strikes" expires_after="2021-01-31">
   <owner>jsaul@google.com</owner>
   <owner>annelim@google.com</owner>
   <summary>
-    Records the number of &quot;strikes&quot; a user has, when a prompt for
-    local card migration is dismissed. The strike count is incremented each time
-    the user dismisses the prompt.
+    Records the number of &quot;strikes&quot; a particular feature has when a
+    new strike is added for that feature.
   </summary>
 </histogram>
 
@@ -1579,6 +1569,8 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 
 <histogram name="Autofill.StrikeDatabase.StrikesPresentWhenStrikeExpired"
     units="strikes" expires_after="2021-01-31">
+<!-- Name completed by histogram_suffixes name="AutofillStrikeDatabaseProjectType" -->
+
   <owner>jsaul@google.com</owner>
   <owner>annelim@google.com</owner>
   <summary>

tools/metrics/histograms/histograms_xml/histogram_suffixes_list.xml

@@ -1503,9 +1503,12 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
   <affected-histogram name="Autofill.StoredServerCreditCardCount"/>
 </histogram_suffixes>
 
-<histogram_suffixes name="AutofillStrikesExpiredProjectType" separator=".">
+<histogram_suffixes name="AutofillStrikeDatabaseProjectType" separator=".">
   <suffix name="CreditCardSave" label="Credit card save"/>
+  <suffix name="FidoAuthentication"
+      label="Fido authentication (Better Auth Project)"/>
   <suffix name="LocalCardMigration" label="Local card migration"/>
+  <affected-histogram name="Autofill.StrikeDatabase.NthStrikeAdded"/>
   <affected-histogram
       name="Autofill.StrikeDatabase.StrikesPresentWhenStrikeExpired"/>
 </histogram_suffixes>