[Autofill] UKM for suggestions polled field.

components/autofill/core/browser/autofill_metrics.cc

Index: components/autofill/core/browser/autofill_metrics.cc
diff --git a/components/autofill/core/browser/autofill_metrics.cc b/components/autofill/core/browser/autofill_metrics.cc
index 77442395f201073a68feac7dc21890f545343393..b85a401d80acb274a2f32a06ead4690120bce421 100644
--- a/components/autofill/core/browser/autofill_metrics.cc
+++ b/components/autofill/core/browser/autofill_metrics.cc
@@ -31,6 +31,7 @@ const char kUKMInteractedWithFormEntryName[] = "Autofill.InteractedWithForm";
 const char kUKMIsForCreditCardMetricName[] = "IsForCreditCard";
 const char kUKMLocalRecordTypeCountMetricName[] = "LocalRecordTypeCount";
 const char kUKMServerRecordTypeCountMetricName[] = "ServerRecordTypeCount";
+const char kUKMPollSuggestionsEntryName[] = "PollSuggestions";
 const char kUKMSuggestionsShownEntryName[] = "Autofill.SuggestionsShown";
 const char kUKMSelectedMaskedServerCardEntryName[] =
     "Autofill.SelectedMaskedServerCard";
@@ -804,12 +805,15 @@ void AutofillMetrics::FormEventLogger::OnDidInteractWithAutofillableForm() {
 }
 
 void AutofillMetrics::FormEventLogger::OnDidPollSuggestions(
-    const FormFieldData& field) {
+    const FormFieldData& field,
+    const AutofillField& autofill_field) {
   // Record only one poll user action for consecutive polls of the same field.
   // This is to avoid recording too many poll actions (for example when a user
   // types in a field, triggering multiple queries) to make the analysis more
   // simple.
   if (!field.SameFieldAs(last_polled_field_)) {
+    form_interactions_ukm_logger_->LogPollSuggestions(autofill_field);
+
     if (is_for_credit_card_) {
       base::RecordAction(
           base::UserMetricsAction("Autofill_PolledCreditCardSuggestions"));
@@ -1028,6 +1032,26 @@ void AutofillMetrics::FormInteractionsUkmLogger::LogInteractedWithForm(
                      server_record_type_count);
 }
 
+void AutofillMetrics::FormInteractionsUkmLogger::LogPollSuggestions(
+    const AutofillField& field) {
+  if (!CanLog())
+    return;
+
+  if (source_id_ == -1)
+    GetNewSourceID();
+
+  std::unique_ptr<ukm::UkmEntryBuilder> builder = ukm_service_->GetEntryBuilder(
+      source_id_, internal::kUKMPollSuggestionsEntryName);
+  builder->AddMetric(internal::kUKMMillisecondsSinceFormLoadedMetricName,
+                     MillisecondsSinceFormLoaded());
+  builder->AddMetric(internal::kUKMHeuristicTypeMetricName,
+                     static_cast<int>(field.heuristic_type()));
+  builder->AddMetric(internal::kUKMServerTypeMetricName,
+                     static_cast<int>(field.server_type()));
+  builder->AddMetric(internal::kUKMHtmlFieldTypeMetricName,
+                     static_cast<int>(field.html_type()));
+}
+
 void AutofillMetrics::FormInteractionsUkmLogger::LogSuggestionsShown() {
   if (!CanLog())
     return;