[Payments] PR: Basic test for the order summary section.

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

 // 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.
 
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
@@ skipping 84 matching lines @@
 }
 
 void PaymentRequestDialogView::GoBack() {
   view_stack_.Pop();
 }
 
 void PaymentRequestDialogView::ShowOrderSummary() {
   view_stack_.Push(CreateViewAndInstallController<OrderSummaryViewController>(
                        &controller_map_, request_, this),
                    /* animate = */ true);
+
+  if (observer_for_testing_)
+    observer_for_testing_->OnOrderSummaryOpened();
 }
 
 void PaymentRequestDialogView::ShowPaymentMethodSheet() {
   view_stack_.Push(CreateViewAndInstallController<PaymentMethodViewController>(
                        &controller_map_, request_, this),
                    /* animate = */ true);
 }
 
 void PaymentRequestDialogView::ShowShippingListSheet() {
   view_stack_.Push(CreateViewAndInstallController<ShippingListViewController>(
@@ skipping 27 matching lines @@
   // When a view that is associated with a controller is removed from this
   // view's descendants, dispose of the controller.
   if (!details.is_add &&
       controller_map_.find(details.child) != controller_map_.end()) {
     DCHECK(!details.move_view);
     controller_map_.erase(details.child);
   }
 }
 
 }  // namespace payments