[Payments] Implements the credit card editor for Desktop UI

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

Index: chrome/browser/ui/views/payments/payment_request_interactive_uitest_base.h
diff --git a/chrome/browser/ui/views/payments/payment_request_interactive_uitest_base.h b/chrome/browser/ui/views/payments/payment_request_interactive_uitest_base.h
index 23dccc43eb9cae8335c71d43ebab602d15f3006a..85f6b7f85512a1430a8d5caf1b5026b09c61c922 100644
--- a/chrome/browser/ui/views/payments/payment_request_interactive_uitest_base.h
+++ b/chrome/browser/ui/views/payments/payment_request_interactive_uitest_base.h
@@ -48,6 +48,9 @@ class PaymentRequestInteractiveTestBase
   // PaymentRequestDialogView::ObserverForTest
   void OnDialogOpened() override;
   void OnOrderSummaryOpened() override;
+  void OnPaymentMethodOpened() override;
+  void OnCreditCardEditorOpened() override;
+  void OnBackNavigation() override;
 
   // views::WidgetObserver
   // Effective way to be warned of all dialog closures.
@@ -57,7 +60,11 @@ class PaymentRequestInteractiveTestBase
   // it's open.
   void InvokePaymentRequestUI();
 
+  // Utility functions that will click on Dialog views and wait for the
+  // associated action to happen.
   void OpenOrderSummaryScreen();
+  void OpenPaymentMethodScreen();
+  void OpenCreditCardEditorScreen();
 
   // Convenience method to get a list of PaymentRequest associated with
   // |web_contents|.
@@ -70,8 +77,12 @@ class PaymentRequestInteractiveTestBase
       content::WebContents* web_contents,
       mojo::InterfaceRequest<payments::mojom::PaymentRequest> request);
 
-  // Click on a view from within the dialog.
-  void ClickOnDialogView(DialogViewID view_id);
+  // Click on a view from within the dialog and waits for an observed event
+  // to be observed.
+  void ClickOnDialogViewAndWait(DialogViewID view_id);
+
+  // Sets proper animation delegates and waits for animation to finish.
+  void WaitForAnimation();
 
   // Returns the text of the StyledLabel with the specific |view_id| that is a
   // child of the Payment Request dialog view.
@@ -82,10 +93,13 @@ class PaymentRequestInteractiveTestBase
   PaymentRequestDialogView* dialog_view() { return delegate_->dialog_view(); }
 
   // Various events that can be waited on by the DialogEventObserver.
-  enum DialogEvent {
+  enum DialogEvent : int {
     DIALOG_OPENED,
     DIALOG_CLOSED,
     ORDER_SUMMARY_OPENED,
+    PAYMENT_METHOD_OPENED,
+    CREDIT_CARD_EDITOR_OPENED,
+    BACK_NAVIGATION,
   };
 
   // DialogEventObserver is used to wait on specific events that may have