[Web Payments] Add Cancel button to all sheets

chrome/browser/ui/views/payments/shipping_list_view_controller.cc

Index: chrome/browser/ui/views/payments/shipping_list_view_controller.cc
diff --git a/chrome/browser/ui/views/payments/shipping_list_view_controller.cc b/chrome/browser/ui/views/payments/shipping_list_view_controller.cc
index 25b391f107d36710de64b0d6182661504e0a5508..5d3cf53cf99aae2134b1973644feeef91ab65dea 100644
--- a/chrome/browser/ui/views/payments/shipping_list_view_controller.cc
+++ b/chrome/browser/ui/views/payments/shipping_list_view_controller.cc
@@ -46,21 +46,8 @@ std::unique_ptr<views::View> ShippingListViewController::CreateView() {
           /* show_back_arrow = */ true,
           l10n_util::GetStringUTF16(IDS_PAYMENT_REQUEST_SHIPPING_SECTION_NAME),
           this),
-      std::move(content_view));
-}
-
-void ShippingListViewController::ButtonPressed(views::Button* sender,
-                                               const ui::Event& event) {
-  switch (sender->tag()) {
-    case static_cast<int>(PaymentRequestCommonTags::CLOSE_BUTTON_TAG):
-      dialog()->CloseDialog();
-      break;
-    case static_cast<int>(PaymentRequestCommonTags::BACK_BUTTON_TAG):
-      dialog()->GoBack();
-      break;
-    default:
-      NOTREACHED();
-  }
+      std::move(content_view),
+      CreateButtonsView(this));
 }
 
 }  // namespace payments