[Payment Request] Error message screen

ios/chrome/browser/payments/payment_items_display_coordinator_unittest.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_items_display_coordinator.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/test/ios/wait_util.h"
 #include "components/autofill/core/browser/autofill_profile.h"
 #include "components/autofill/core/browser/credit_card.h"
@@ skipping 34 matching lines @@
   EXPECT_EQ(2u, navigation_controller.viewControllers.count);
 
   [coordinator stop];
   // Short delay to allow animation to complete.
   base::test::ios::SpinRunLoopWithMaxDelay(base::TimeDelta::FromSecondsD(1.0));
   EXPECT_EQ(1u, navigation_controller.viewControllers.count);
 }
 
 // Tests that calling the view controller delegate method which notifies the
 // coordinator that the user has confirmed the payment request invokes the
-// the corresponding coordinator delegate method.
+// corresponding coordinator delegate method.
 TEST(PaymentItemsDisplayCoordinatorTest, DidConfirm) {
   std::unique_ptr<PaymentRequest> payment_request =
       payment_request_test_util::CreateTestPaymentRequest();
 
   UIViewController* base_view_controller =
       [[[UIViewController alloc] init] autorelease];
   UINavigationController* navigation_controller =
       [[[UINavigationController alloc]
           initWithRootViewController:base_view_controller] autorelease];
 
@@ skipping 56 matching lines @@
   EXPECT_EQ(2u, navigation_controller.viewControllers.count);
 
   // Call the controller delegate method.
   PaymentItemsDisplayViewController* view_controller =
       base::mac::ObjCCastStrict<PaymentItemsDisplayViewController>(
           navigation_controller.visibleViewController);
   [coordinator paymentItemsDisplayViewControllerDidReturn:view_controller];
 
   EXPECT_OCMOCK_VERIFY(delegate);
 }