[WebPayments] Disabling done button when form invalid

chrome/browser/ui/views/payments/contact_info_editor_view_controller.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/contact_info_editor_view_controller.h"
 
 #include <utility>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/views/payments/validating_textfield.h"
@@ skipping 107 matching lines @@
 
 base::string16 ContactInfoEditorViewController::GetSheetTitle() {
   // TODO(crbug.com/712074): Title should reflect the missing information, if
   // applicable.
   return profile_to_edit_ ? l10n_util::GetStringUTF16(
                                 IDS_PAYMENTS_EDIT_CONTACT_DETAILS_LABEL)
                           : l10n_util::GetStringUTF16(
                                 IDS_PAYMENTS_ADD_CONTACT_DETAILS_LABEL);
 }
 
-bool ContactInfoEditorViewController::ValidateModel() {
-  for (const auto& field : text_fields()) {
-    // Force a blur, as validation only occurs after the first blur.
-    field.first->OnBlur();
-    if (field.first->invalid())
-      return false;
-  }
-  return true;
-}
-
 void ContactInfoEditorViewController::PopulateProfile(
     autofill::AutofillProfile* profile) {
   for (const auto& field : text_fields()) {
     profile->SetInfo(autofill::AutofillType(field.second.type),
                      field.first->text(), state()->GetApplicationLocale());
   }
   profile->set_origin(autofill::kSettingsOrigin);
 }
 
 bool ContactInfoEditorViewController::GetSheetId(DialogViewID* sheet_id) {
@@ skipping 101 matching lines @@
 }
 
 bool ContactInfoEditorViewController::ContactInfoValidationDelegate::
     ComboboxValueChanged(views::Combobox* combobox) {
   // This UI doesn't contain any comboboxes.
   NOTREACHED();
   return true;
 }
 
 }  // namespace payments