[Payments] Basic validation in the credit card editor.

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 85f6b7f85512a1430a8d5caf1b5026b09c61c922..373d978f7dd0301e289b3d6cb646cc7ed3c47632 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
@@ -10,9 +10,11 @@
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
+#include "base/strings/string16.h"
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view.h"
 #include "chrome/browser/ui/views/payments/test_chrome_payment_request_delegate.h"
 #include "chrome/test/base/in_process_browser_test.h"
+#include "components/autofill/core/browser/field_types.h"
 #include "components/payments/payment_request.mojom.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "ui/views/widget/widget_observer.h"
@@ -81,6 +83,14 @@ class PaymentRequestInteractiveTestBase
   // to be observed.
   void ClickOnDialogViewAndWait(DialogViewID view_id);
 
+  // Setting the |value| in the textfield of a given |type|.
+  void SetEditorTextfieldValue(const base::string16& value,
+                               autofill::ServerFieldType type);
+
+  // Whether the editor textfield for the given |type| is currently in an
+  // invalid state.
+  bool IsEditorTextfieldInvalid(autofill::ServerFieldType type);
+
   // Sets proper animation delegates and waits for animation to finish.
   void WaitForAnimation();