[Payments] Desktop: implement shipping address/option change

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 36 matching lines @@
   return view;
 }
 
 }  // namespace
 
 PaymentRequestDialogView::PaymentRequestDialogView(
     PaymentRequest* request,
     PaymentRequestDialogView::ObserverForTest* observer)
     : request_(request), observer_for_testing_(observer), being_closed_(false) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+  if (observer_for_testing_)
+    request->spec()->add_observer_for_testing(this);
   SetLayoutManager(new views::FillLayout());
 
   view_stack_.set_owned_by_client();
   AddChildView(&view_stack_);
 
   ShowInitialPaymentSheet();
 }
 
 PaymentRequestDialogView::~PaymentRequestDialogView() {}
 
@@ skipping 43 matching lines @@
 void PaymentRequestDialogView::ShowErrorMessage() {
   view_stack_.Push(CreateViewAndInstallController(
                        base::MakeUnique<ErrorMessageViewController>(
                            request_->spec(), request_->state(), this),
                        &controller_map_),
                    /* animate = */ false);
   if (observer_for_testing_)
     observer_for_testing_->OnErrorMessageShown();
 }
 
+void PaymentRequestDialogView::OnSpecUpdated() {
+  // Since this is called in tests only, |observer_for_testing_| is defined.
+  DCHECK(observer_for_testing_);
+  observer_for_testing_->OnSpecDoneUpdating();
+}
+
 void PaymentRequestDialogView::Pay() {
   request_->Pay();
 }
 
 void PaymentRequestDialogView::GoBack() {
   view_stack_.Pop();
 
   if (observer_for_testing_)
     observer_for_testing_->OnBackNavigation();
 }
@@ skipping 95 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