[Web Payments] Implement the CVC Unmask dialog.

components/payments/core/payment_request_delegate.h

 // Copyright 2017 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 COMPONENTS_PAYMENTS_CONTENT_PAYMENT_REQUEST_DELEGATE_H_
 #define COMPONENTS_PAYMENTS_CONTENT_PAYMENT_REQUEST_DELEGATE_H_
 
 #include <string>
 
+#include "base/memory/weak_ptr.h"
+#include "components/autofill/core/browser/payments/full_card_request.h"
+
 namespace autofill {
+class CreditCard;
 class PersonalDataManager;
 }
 
 namespace payments {
 
 class PaymentRequest;
 
 class PaymentRequestDelegate {
  public:
   virtual ~PaymentRequestDelegate() {}
@@ skipping 10 matching lines @@
   virtual void ShowErrorMessage() = 0;
 
   // Gets the PersonalDataManager associated with this PaymentRequest flow.
   // Cannot be null.
   virtual autofill::PersonalDataManager* GetPersonalDataManager() = 0;
 
   virtual const std::string& GetApplicationLocale() const = 0;
 
   // Returns whether the user is in Incognito mode.
   virtual bool IsIncognito() const = 0;
+
+  // Starts a FullCardRequest to unmask |credit_card|.
+  virtual void DoFullCardRequest(
+      const autofill::CreditCard& credit_card,
+      base::WeakPtr<autofill::payments::FullCardRequest::ResultDelegate>
+          result_delegate) = 0;
 };
 
 }  // namespace payments
 
 #endif  // COMPONENTS_PAYMENTS_CONTENT_PAYMENT_REQUEST_DELEGATE_H_