Record Autofill form events specially for nonsecure pages

components/autofill/core/browser/autofill_metrics.h

Index: components/autofill/core/browser/autofill_metrics.h
diff --git a/components/autofill/core/browser/autofill_metrics.h b/components/autofill/core/browser/autofill_metrics.h
index 32bc42dbb250e2ad67949a672bc75fdac95b0818..4a4dd269c2070db28fc25210bd69e77d3cca0a35 100644
--- a/components/autofill/core/browser/autofill_metrics.h
+++ b/components/autofill/core/browser/autofill_metrics.h
@@ -694,6 +694,10 @@ class AutofillMetrics {
       is_local_data_available_ = is_local_data_available;
     }
 
+    inline void set_is_main_url_secure(bool is_main_url_secure) {
+      is_main_url_secure_ = is_main_url_secure;
+    }
+
     void OnDidInteractWithAutofillableForm();
 
     void OnDidPollSuggestions(const FormFieldData& field);
@@ -718,6 +722,7 @@ class AutofillMetrics {
     bool is_for_credit_card_;
     bool is_server_data_available_;
     bool is_local_data_available_;
+    bool is_main_url_secure_;
     bool has_logged_interacted_;
     bool has_logged_suggestions_shown_;
     bool has_logged_masked_server_card_suggestion_selected_;