Add billing address as a mandatory field of Payments credit cards.

chrome/browser/ui/views/payments/shipping_address_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/shipping_address_editor_view_controller.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 50 matching lines @@
   NOTREACHED();
   return autofill::UNKNOWN_TYPE;
 }
 
 }  // namespace
 
 ShippingAddressEditorViewController::ShippingAddressEditorViewController(
     PaymentRequestSpec* spec,
     PaymentRequestState* state,
     PaymentRequestDialogView* dialog,
+    BackNavigationType back_navigation_type,
     base::OnceClosure on_edited,
     base::OnceCallback<void(const autofill::AutofillProfile&)> on_added,
     autofill::AutofillProfile* profile)
-    : EditorViewController(spec, state, dialog),
+    : EditorViewController(spec, state, dialog, back_navigation_type),
       on_edited_(std::move(on_edited)),
       on_added_(std::move(on_added)),
       profile_to_edit_(profile),
       chosen_country_index_(0),
       failed_to_load_region_data_(false) {
   UpdateEditorFields();
 }
 
 ShippingAddressEditorViewController::~ShippingAddressEditorViewController() {}
 
 std::unique_ptr<views::View>
 ShippingAddressEditorViewController::CreateHeaderView() {
   return base::MakeUnique<views::View>();
 }
 
+std::unique_ptr<views::View>
+ShippingAddressEditorViewController::CreateCustomFieldsView() {
+  return base::MakeUnique<views::View>();
+}
+
 std::vector<EditorField>
 ShippingAddressEditorViewController::GetFieldDefinitions() {
   return editor_fields_;
 }
 
 base::string16 ShippingAddressEditorViewController::GetInitialValueForType(
     autofill::ServerFieldType type) {
   // Temporary profile has precedence over profile to edit since its existence
   // is based on having unsaved stated to restore.
   if (temporary_profile_.get()) {
@@ skipping 316 matching lines @@
   bool is_required_valid = !field_.required;
   const base::string16 displayed_message =
       is_required_valid ? base::ASCIIToUTF16("")
                         : l10n_util::GetStringUTF16(
                               IDS_PAYMENTS_FIELD_REQUIRED_VALIDATION_MESSAGE);
   controller_->DisplayErrorMessageForField(field_, displayed_message);
   return is_required_valid;
 }
 
 }  // namespace payments