Selected shipping option in payment summary view + shipping option selection view

ios/chrome/browser/payments/payment_request_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_REQUEST_VIEW_CONTROLLER_H_
 #define IOS_CHROME_BROWSER_PAYMENTS_PAYMENT_REQUEST_VIEW_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 
 #import "ios/chrome/browser/ui/collection_view/collection_view_controller.h"
 #include "ios/web/public/payments/payment_request.h"
 
 namespace autofill {
 class AutofillProfile;
 class CreditCard;
 }
 
 @protocol PaymentRequestViewControllerDelegate<NSObject>
 - (void)paymentRequestViewControllerDidCancel;
 - (void)paymentRequestViewControllerDidConfirm;
 - (void)paymentRequestViewControllerDisplayPaymentItems;
 - (void)paymentRequestViewControllerSelectShippingAddress;
+- (void)paymentRequestViewControllerSelectShippingOption;
 - (void)paymentRequestViewControllerSelectPaymentMethod;
 
 @end
 
 // View controller responsible for presenting the details of a PaymentRequest to
 // the user and communicating their choices to the supplied delegate.
 @interface PaymentRequestViewController : CollectionViewController
 
 // The PaymentRequest object as provided by the page invoking the Payment
 // Request API.
 @property(nonatomic, assign) web::PaymentRequest paymentRequest;
 
 // The favicon of the page invoking the Payment Request API.
 @property(nonatomic, retain) UIImage* pageFavicon;
 
 // The title of the page invoking the Payment Request API.
 @property(nonatomic, copy) NSString* pageTitle;
 
 // The host of the page invoking the Payment Request API.
 @property(nonatomic, copy) NSString* pageHost;
 
 // The currently selected and displayed shipping address, if any.
 @property(nonatomic, assign) autofill::AutofillProfile* selectedShippingAddress;
 
+// The currently selected and displayed shipping option, if any.
+@property(nonatomic, assign) web::PaymentShippingOption* selectedShippingOption;
+
 // The currently selected and displayed payment method, if any.
 @property(nonatomic, assign) autofill::CreditCard* selectedPaymentMethod;
 
 // The delegate to be notified when the user confirms or cancels the request.
 @property(nonatomic, weak) id<PaymentRequestViewControllerDelegate> delegate;
 
 // Sets the selected shipping address and updates the UI.
 - (void)updateSelectedShippingAddress:
     (autofill::AutofillProfile*)shippingAddress;
 
+// Sets the selected shipping option and updates the UI.
+- (void)updateSelectedShippingOption:
+    (web::PaymentShippingOption*)shippingOption;
+
 - (instancetype)init NS_DESIGNATED_INITIALIZER;
 
 - (instancetype)initWithStyle:(CollectionViewControllerStyle)style
     NS_UNAVAILABLE;
 
 @end
 
 #endif  // IOS_CHROME_BROWSER_PAYMENTS_PAYMENT_REQUEST_VIEW_CONTROLLER_H_