[Autofill] Log the number of autofill profiles available at form submission

components/autofill/core/browser/autofill_metrics.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/autofill/core/browser/autofill_metrics.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/time/time.h"
@@ skipping 443 matching lines @@
 void AutofillMetrics::LogIsAutofillEnabledAtPageLoad(bool enabled) {
   UMA_HISTOGRAM_BOOLEAN("Autofill.IsEnabled.PageLoad", enabled);
 }
 
 // static
 void AutofillMetrics::LogStoredProfileCount(size_t num_profiles) {
   UMA_HISTOGRAM_COUNTS("Autofill.StoredProfileCount", num_profiles);
 }
 
 // static
+void AutofillMetrics::LogNumberOfProfilesAtAutofillableFormSubmission(
+    size_t num_profiles) {
+  UMA_HISTOGRAM_COUNTS(
+      "Autofill.StoredProfileCountAtAutofillableFormSubmission", num_profiles);
+}
+
+// static
 void AutofillMetrics::LogAddressSuggestionsCount(size_t num_suggestions) {
   UMA_HISTOGRAM_COUNTS("Autofill.AddressSuggestionsCount", num_suggestions);
 }
 
 AutofillMetrics::FormEventLogger::FormEventLogger(bool is_for_credit_card)
     : is_for_credit_card_(is_for_credit_card),
       is_server_data_available_(false),
       is_local_data_available_(false),
       has_logged_interacted_(false) {};
 
@@ skipping 21 matching lines @@
   else if (is_server_data_available_ && !is_local_data_available_)
     name += ".WithOnlyServerData";
   else if (!is_server_data_available_ && is_local_data_available_)
     name += ".WithOnlyLocalData";
   else
     name += ".WithBothServerAndLocalData";
   LogUMAHistogramEnumeration(name, event, NUM_FORM_EVENTS);
 }
 
 }  // namespace autofill