Add a regression test for the CardUnmaskPrompt.

chrome/browser/ui/autofill/card_unmask_prompt_controller.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_UI_AUTOFILL_CARD_UNMASK_PROMPT_CONTROLLER_H_
 #define CHROME_BROWSER_UI_AUTOFILL_CARD_UNMASK_PROMPT_CONTROLLER_H_
 
 #include "base/strings/string16.h"
 
+namespace base {
+class TimeDelta;
+}
+
 namespace content {
 class WebContents;
 }
 
 namespace autofill {
 
 class CardUnmaskPromptController {
  public:
   // Interaction.
   virtual void OnUnmaskDialogClosed() = 0;
   virtual void OnUnmaskResponse(const base::string16& cvc,
                                 const base::string16& exp_month,
                                 const base::string16& exp_year,
                                 bool should_store_pan) = 0;
 
   // State.
   virtual content::WebContents* GetWebContents() = 0;
   virtual base::string16 GetWindowTitle() const = 0;
   virtual base::string16 GetInstructionsMessage() const = 0;
   virtual int GetCvcImageRid() const = 0;
   virtual bool ShouldRequestExpirationDate() const = 0;
   virtual bool GetStoreLocallyStartState() const = 0;
   virtual bool InputCvcIsValid(const base::string16& input_text) const = 0;
   virtual bool InputExpirationIsValid(const base::string16& month,
                                       const base::string16& year) const = 0;
+  virtual base::TimeDelta GetSuccessMessageDuration() const = 0;
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_CARD_UNMASK_PROMPT_CONTROLLER_H_