[Payments] iOS: Support basic-card

ios/chrome/browser/payments/payment_request_coordinator.mm

 // Copyright 2016 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.
 
 #import "ios/chrome/browser/payments/payment_request_coordinator.h"
 
 #include <unordered_set>
 #include <vector>
 
 #include "base/memory/ptr_util.h"
@@ skipping 190 matching lines @@
   autofill::CreditCard* card = _paymentRequest->selected_credit_card();
   _fullCardRequester = base::MakeUnique<FullCardRequester>(
       self, _navigationController, _browserState);
   _fullCardRequester->GetFullCard(card, _autofillManager);
 }
 
 - (void)fullCardRequestDidSucceedWithCard:(const autofill::CreditCard&)card
                                       CVC:(const base::string16&)cvc {
   web::PaymentResponse paymentResponse;
 
+  // If the merchant specified the card network as part of the "basic-card"
+  // payment method, return "basic-card" as the method_name. Otherwise, return
+  // the name of the network directly.
+  std::string basic_card_type =
+      autofill::data_util::GetPaymentRequestData(card.type())
+          .basic_card_payment_type;
   paymentResponse.method_name =
-      base::ASCIIToUTF16(autofill::data_util::GetPaymentRequestData(card.type())
-                             .basic_card_payment_type);
+      _paymentRequest->basic_card_specified_networks().find(basic_card_type) !=
+              _paymentRequest->basic_card_specified_networks().end()
+          ? base::ASCIIToUTF16("basic-card")
+          : base::ASCIIToUTF16(basic_card_type);
 
   paymentResponse.details = GetBasicCardResponseFromAutofillCreditCard(
       card, cvc, _paymentRequest->billing_profiles(),
       GetApplicationContext()->GetApplicationLocale());
 
   if (_paymentRequest->payment_options().request_shipping) {
     autofill::AutofillProfile* shippingAddress =
         _paymentRequest->selected_shipping_profile();
     // TODO(crbug.com/602666): User should get here only if they have selected
     // a shipping address.
@@ skipping 242 matching lines @@
 - (void)paymentMethodSelectionCoordinatorDidReturn:
     (PaymentMethodSelectionCoordinator*)coordinator {
   // Clear the 'Updated' label on the payment summary item, if there is one.
   [_viewController updatePaymentSummaryWithTotalValueChanged:NO];
 
   [_methodSelectionCoordinator stop];
   _methodSelectionCoordinator = nil;
 }
 
 @end