Focus first invalid field of payment request editor

chrome/browser/ui/views/payments/validating_combobox.cc

 // Copyright 2017 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 "chrome/browser/ui/views/payments/validating_combobox.h"
 
 #include <utility>
 
 #include "ui/base/models/combobox_model.h"
 
@@ skipping 10 matching lines @@
 ValidatingCombobox::~ValidatingCombobox() {}
 
 void ValidatingCombobox::OnBlur() {
   Combobox::OnBlur();
 
   // The first validation should be on a blur. The subsequent validations will
   // occur when the content changes. Do not validate if the view is being
   // removed.
   if (!was_blurred_ && !being_removed_) {
     was_blurred_ = true;
-    Validate();
+    Validate(/*display_error=*/true);
   }
 }
 
 void ValidatingCombobox::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (details.child == this && !details.is_add)
     being_removed_ = true;
 }
 
 void ValidatingCombobox::OnContentsChanged() {
   // Validation on every keystroke only happens if the field has been validated
   // before as part of a blur.
   if (!was_blurred_)
     return;
 
-  Validate();
+  Validate(/*display_error=*/true);
 }
 
 void ValidatingCombobox::OnComboboxModelChanged(
     ui::ComboboxModel* unused_model) {
   ModelChanged();
   delegate_->ComboboxModelChanged(this);
 }
 
-void ValidatingCombobox::Validate() {
+void ValidatingCombobox::Validate(bool display_error) {
   // ValidateCombobox may have side-effects, such as displaying errors.
-  SetInvalid(!delegate_->ValidateCombobox(this));
+  SetInvalid(!delegate_->ValidateCombobox(this, display_error));
 }
 
 }  // namespace payments