Add a regression test for the CardUnmaskPrompt.

chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.cc

 // 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.
 
 #include "chrome/browser/ui/autofill/card_unmask_prompt_controller_impl.h"
 
 #include "base/bind.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ skipping 18 matching lines @@
       unmasking_initial_should_store_pan_(false),
       unmasking_number_of_attempts_(0),
       weak_pointer_factory_(this) {
 }
 
 CardUnmaskPromptControllerImpl::~CardUnmaskPromptControllerImpl() {
   if (card_unmask_view_)
     card_unmask_view_->ControllerGone();
 }
 
-CardUnmaskPromptView* CardUnmaskPromptControllerImpl::CreateAndShowView() {
-  return CardUnmaskPromptView::CreateAndShow(this);
-}
-
 void CardUnmaskPromptControllerImpl::ShowPrompt(
     const CreditCard& card,
     base::WeakPtr<CardUnmaskDelegate> delegate) {
   if (card_unmask_view_)
     card_unmask_view_->ControllerGone();
 
   pending_response_ = CardUnmaskDelegate::UnmaskResponse();
   LoadRiskFingerprint();
   card_ = card;
   delegate_ = delegate;
@@ skipping 201 matching lines @@
 
   if (year_value < now.year)
     return false;
 
   if (year_value > now.year)
     return true;
 
   return month_value >= now.month;
 }
 
+base::TimeDelta CardUnmaskPromptControllerImpl::GetSuccessMessageDuration()
+    const {
+  return base::TimeDelta::FromMilliseconds(500);
+}
+
+CardUnmaskPromptView* CardUnmaskPromptControllerImpl::CreateAndShowView() {
+  return CardUnmaskPromptView::CreateAndShow(this);
+}
+
 void CardUnmaskPromptControllerImpl::LoadRiskFingerprint() {
   LoadRiskData(
       0, web_contents_,
       base::Bind(&CardUnmaskPromptControllerImpl::OnDidLoadRiskFingerprint,
                  weak_pointer_factory_.GetWeakPtr()));
 }
 
 void CardUnmaskPromptControllerImpl::OnDidLoadRiskFingerprint(
     const std::string& risk_data) {
   pending_response_.risk_data = risk_data;
   if (!pending_response_.cvc.empty())
     delegate_->OnUnmaskResponse(pending_response_);
 }
 
 }  // namespace autofill