Add metrics for PasswordForm submission types

components/password_manager/core/browser/password_manager_metrics_util.cc

Index: components/password_manager/core/browser/password_manager_metrics_util.cc
diff --git a/components/password_manager/core/browser/password_manager_metrics_util.cc b/components/password_manager/core/browser/password_manager_metrics_util.cc
index 642f0308edab59cabe41d70de42ec48af8314b99..bd7dca3da85d1a247928ada09b5cfbbcba64c5e1 100644
--- a/components/password_manager/core/browser/password_manager_metrics_util.cc
+++ b/components/password_manager/core/browser/password_manager_metrics_util.cc
@@ -174,6 +174,13 @@ void LogShowedFormNotSecureWarningOnCurrentNavigation() {
       "PasswordManager.ShowedFormNotSecureWarningOnCurrentNavigation", true);
 }
 
+void LogPasswordSuccessfulSubmissionIndicatorEvent(
+    autofill::PasswordForm::SubmissionIndicatorEvent event) {
+  UMA_HISTOGRAM_ENUMERATION(
+      "PasswordManager.SuccessfulSubmissionIndicatorEvent", event,
+      autofill::PasswordForm::SubmissionIndicatorEvent::SUBMISSION_EVENT_COUNT);
+}
+
 }  // namespace metrics_util
 
 }  // namespace password_manager