Revert of [Payment Request] Moves PaymentRequestViewController to :payments_ui

ios/chrome/browser/ui/payments/payment_request_view_controller_data_source.h

Index: ios/chrome/browser/ui/payments/payment_request_view_controller_data_source.h
diff --git a/ios/chrome/browser/ui/payments/payment_request_view_controller_data_source.h b/ios/chrome/browser/ui/payments/payment_request_view_controller_data_source.h
deleted file mode 100644
index 1f130b3aa602a91550664060923ae38cc03586c9..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/payments/payment_request_view_controller_data_source.h
+++ /dev/null
@@ -1,64 +0,0 @@
-// 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.
-
-#ifndef IOS_CHROME_BROWSER_UI_PAYMENTS_PAYMENT_REQUEST_VIEW_CONTROLLER_DATA_SOURCE_H_
-#define IOS_CHROME_BROWSER_UI_PAYMENTS_PAYMENT_REQUEST_VIEW_CONTROLLER_DATA_SOURCE_H_
-
-#import <Foundation/Foundation.h>
-
-@class CollectionViewFooterItem;
-@class CollectionViewItem;
-
-// Data source protocol for PaymentRequestViewController.
-@protocol PaymentRequestViewControllerDataSource
-
-// Returns whether the payment can be made and therefore the pay button should
-// be enabled.
-- (BOOL)canPay;
-
-// Returns whether shipment can be done and therefore the shipping options
-// should be presented.
-- (BOOL)canShip;
-
-// Returns whether the total price is itemized.
-- (BOOL)hasPaymentItems;
-
-// Returns whether shipping is requested and therefore the Shipping section
-// should be presented.
-- (BOOL)requestShipping;
-
-// Returns whether contact information is requested and therefore the Contact
-// Info section should be presented.
-- (BOOL)requestContactInfo;
-
-// Returns the Payment Summary item displayed in the Summary section.
-- (CollectionViewItem*)paymentSummaryItem;
-
-// Returns the header item for the Shipping section.
-- (CollectionViewItem*)shippingSectionHeaderItem;
-
-// Returns the Shipping Address item displayed in the Shipping section.
-- (CollectionViewItem*)shippingAddressItem;
-
-// Returns the Shipping Option item displayed in the Shipping section.
-- (CollectionViewItem*)shippingOptionItem;
-
-// Returns the header item for the Payment Method section.
-- (CollectionViewItem*)paymentMethodSectionHeaderItem;
-
-// Returns the item displayed in the Payment Method section.
-- (CollectionViewItem*)paymentMethodItem;
-
-// Returns the header item for the Contact Info section.
-- (CollectionViewItem*)contactInfoSectionHeaderItem;
-
-// Returns the item displayed in the Contact Info section.
-- (CollectionViewItem*)contactInfoItem;
-
-// Returns the item displayed at the bottom of the view.
-- (CollectionViewFooterItem*)footerItem;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_PAYMENTS_PAYMENT_REQUEST_VIEW_CONTROLLER_DATA_SOURCE_H_