EarlGrey tests for Payment Request (base CL)

ios/chrome/browser/payments/payment_items_display_view_controller.h

 // 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.
 
 #ifndef IOS_CHROME_BROWSER_PAYMENTS_PAYMENT_ITEMS_DISPLAY_VIEW_CONTROLLER_H_
 #define IOS_CHROME_BROWSER_PAYMENTS_PAYMENT_ITEMS_DISPLAY_VIEW_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 #include <vector>
 
 #import "ios/chrome/browser/ui/collection_view/collection_view_controller.h"
 #include "ios/web/public/payments/payment_request.h"
 
+// The accessibility identifiers of the cells in the collection view.
+extern NSString* const kPaymentItemsDisplayItemId;
+
 @class PaymentItemsDisplayViewController;
 
 // Protocol for communicating with the delegate supplied to
 // PaymentItemsDisplayViewController.
 @protocol PaymentItemsDisplayViewControllerDelegate<NSObject>
 
 // Notifies the delegate that the user has chosen to return to the previous
 // screen.
 - (void)paymentItemsDisplayViewControllerDidReturn:
     (PaymentItemsDisplayViewController*)controller;
@@ skipping 22 matching lines @@
 
 - (instancetype)initWithPayButtonEnabled:(BOOL)payButtonEnabled
     NS_DESIGNATED_INITIALIZER;
 
 - (instancetype)initWithStyle:(CollectionViewControllerStyle)style
     NS_UNAVAILABLE;
 
 @end
 
 #endif  // IOS_CHROME_BROWSER_PAYMENTS_PAYMENT_ITEMS_DISPLAY_VIEW_CONTROLLER_H_