[Web Payments] Implement the CVC Unmask dialog.

components/payments/content/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/autofill_client.h"
+#include "components/autofill/core/browser/payments/full_card_request.h"
+#include "components/payments/core/autofill_payment_instrument.h"

[please use gerrit instead, 2017/03/30 13:14:09]

Why are weak_ptr, autofill_client, and autofill_payment_instrument included in
here? I do not see them being used below.

[anthonyvd, 2017/03/30 15:43:41]

Good catch, this code changed a lot while writing it and I forgot to remove
those after they became unused.

+
 namespace autofill {
 class PersonalDataManager;
 }
 
 namespace payments {
 
 class PaymentRequest;
 
-class PaymentRequestDelegate {
+class PaymentRequestDelegate
+    : public AutofillPaymentInstrument::FullCardRequestDelegate {
  public:
   virtual ~PaymentRequestDelegate() {}
 
   // Shows the Payment Request dialog for the given |request|.
   virtual void ShowDialog(PaymentRequest* request) = 0;
 
   // Closes the same dialog that was opened by this delegate. Must be safe to
   // call when the dialog is not showing.
   virtual void CloseDialog() = 0;
 
   // Disables the dialog and shows an error message that the transaction has
   // failed.
   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;
 };
 
 }  // namespace payments
 
 #endif  // COMPONENTS_PAYMENTS_CONTENT_PAYMENT_REQUEST_DELEGATE_H_