Show Form-Not-Secure warning on page load

components/autofill/content/renderer/password_autofill_agent.cc

Index: components/autofill/content/renderer/password_autofill_agent.cc
diff --git a/components/autofill/content/renderer/password_autofill_agent.cc b/components/autofill/content/renderer/password_autofill_agent.cc
index 0153ac5b4545b9f82c35e1cd5afe4ab3646c27f8..88be1dece93798eb88c848a4832093e0457f40c2 100644
--- a/components/autofill/content/renderer/password_autofill_agent.cc
+++ b/components/autofill/content/renderer/password_autofill_agent.cc
@@ -886,6 +886,16 @@ bool PasswordAutofillAgent::ShowSuggestions(
                              element.isPasswordField());
 }
 
+void PasswordAutofillAgent::ShowNotSecureWarning(
+    const blink::WebInputElement& element) {
+  FormData form;
+  FormFieldData field;
+  form_util::FindFormAndFieldForFormControlElement(element, &form, &field);
+  GetPasswordManagerDriver()->ShowNotSecureWarning(
+      field.text_direction,
+      render_frame()->GetRenderView()->ElementBoundsInWindow(element));
+}
+
 bool PasswordAutofillAgent::OriginCanAccessPasswordManager(
     const blink::WebSecurityOrigin& origin) {
   return origin.canAccessPasswordManager();
@@ -1249,12 +1259,15 @@ void PasswordAutofillAgent::FillPasswordForm(
         element.isPasswordField()
             ? element
             : web_input_to_password_info_[element].password_field;
-    FillFormOnPasswordReceived(
-        form_data, username_element, password_element,
-        &field_value_and_properties_map_,
-        base::Bind(&PasswordValueGatekeeper::RegisterElement,
-                   base::Unretained(&gatekeeper_)),
-        logger.get());
+    if (FillFormOnPasswordReceived(
+            form_data, username_element, password_element,
+            &field_value_and_properties_map_,
+            base::Bind(&PasswordValueGatekeeper::RegisterElement,
+                       base::Unretained(&gatekeeper_)),
+            logger.get())) {
+      if (form_data.show_form_not_secure_warning_on_autofill)
+        autofill_agent_->ShowNotSecureWarning(username_element);
+    }
   }
 }