Implement 'invalid' AutocompleteErrorEvent#reason

components/autofill/content/renderer/autofill_agent.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/content/renderer/autofill_agent.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/strings/string_split.h"
@@ skipping 726 matching lines @@
   Send(new AutofillHostMsg_FormsSeen(routing_id(), forms,
                                      forms_seen_timestamp_,
                                      NO_SPECIAL_FORMS_SEEN));
 }
 
 void AutofillAgent::OnRequestAutocompleteResult(
     WebFormElement::AutocompleteResult result, const FormData& form_data) {
   if (in_flight_request_form_.isNull())
     return;
 
-  if (result == WebFormElement::AutocompleteResultSuccess)
+  if (result == WebFormElement::AutocompleteResultSuccess) {
     FillFormIncludingNonFocusableElements(form_data, in_flight_request_form_);
+    if (!in_flight_request_form_.checkValidityWithoutDispatchingEvents())
+      result = WebFormElement::AutocompleteResultErrorInvalid;
+  }
 
   in_flight_request_form_.finishRequestAutocomplete(result);
   in_flight_request_form_.reset();
 }
 
 void AutofillAgent::OnFillFormsAndClick(
     const std::vector<FormData>& forms,
     const std::vector<WebElementDescriptor>& click_elements_before_form_fill,
     const std::vector<WebElementDescriptor>& click_elements_after_form_fill,
     const WebElementDescriptor& click_element_descriptor) {
@@ skipping 238 matching lines @@
   if (!forms.empty()) {
     if (click_timer_.IsRunning())
       click_timer_.Stop();
     Send(new AutofillHostMsg_FormsSeen(routing_id(), forms,
                                        forms_seen_timestamp_,
                                        state));
   }
 }
 
 }  // namespace autofill