Use PaymentRequestItemList for Shipping screen

chrome/browser/ui/views/payments/payment_request_item_list.h

Index: chrome/browser/ui/views/payments/payment_request_item_list.h
diff --git a/chrome/browser/ui/views/payments/payment_request_item_list.h b/chrome/browser/ui/views/payments/payment_request_item_list.h
index 09aafea098284a14576c184557756470939649e4..547194ee4901930b0f165cbbd35fdb0fd82d043b 100644
--- a/chrome/browser/ui/views/payments/payment_request_item_list.h
+++ b/chrome/browser/ui/views/payments/payment_request_item_list.h
@@ -11,6 +11,7 @@
 #include "base/macros.h"
 
 namespace views {
+class ImageView;
 class View;
 }
 
@@ -60,6 +61,10 @@ class PaymentRequestItemList {
     // be aware that their views might not exist yet.
     virtual void SelectedStateChanged() = 0;
 
+    // Creates an image of a large checkmark, used to indicate that an option is
+    // selected.
+    std::unique_ptr<views::ImageView> CreateCheckmark(bool selected);
+
    private:
     std::unique_ptr<views::View> item_view_;
     PaymentRequest* request_;