[Web Payments] Implement the CVC Unmask dialog.

components/payments/core/autofill_payment_instrument.h

Index: components/payments/core/autofill_payment_instrument.h
diff --git a/components/payments/core/autofill_payment_instrument.h b/components/payments/core/autofill_payment_instrument.h
index ca0e125d666fc2c50c9c6e2c1e6577db4ffd6325..5968a21fe50820227b11da95c2ddabe92daa7298 100644
--- a/components/payments/core/autofill_payment_instrument.h
+++ b/components/payments/core/autofill_payment_instrument.h
@@ -11,6 +11,7 @@
 
 #include "base/macros.h"
 #include "components/autofill/core/browser/credit_card.h"
+#include "components/autofill/core/browser/payments/full_card_request.h"
 #include "components/payments/core/payment_instrument.h"
 
 namespace autofill {
@@ -19,30 +20,46 @@ class AutofillProfile;
 
 namespace payments {
 
+class PaymentRequestDelegate;
+
 // Represents an Autofill/Payments credit card form of payment in Payment
 // Request.
-class AutofillPaymentInstrument : public PaymentInstrument {
+class AutofillPaymentInstrument
+    : public PaymentInstrument,
+      public autofill::payments::FullCardRequest::ResultDelegate {
  public:
   // |billing_profiles| is owned by the caller and should outlive this object.
+  // |payment_request_delegate| must outlive this object.
   AutofillPaymentInstrument(
       const std::string& method_name,
       const autofill::CreditCard& card,
       const std::vector<autofill::AutofillProfile*>& billing_profiles,
-      const std::string& app_locale);
+      const std::string& app_locale,
+      PaymentRequestDelegate* payment_request_delegate);
   ~AutofillPaymentInstrument() override;
 
   // PaymentInstrument:
   void InvokePaymentApp(PaymentInstrument::Delegate* delegate) override;
   bool IsValid() override;
 
+  // autofill::payments::FullCardRequest::ResultDelegate:
+  void OnFullCardRequestSucceeded(const autofill::CreditCard& card,
+                                  const base::string16& cvc) override;
+  void OnFullCardRequestFailed() override;
+
  private:
   // A copy of the card is owned by this object.
-  const autofill::CreditCard credit_card_;
+  autofill::CreditCard credit_card_;
   // Not owned by this object, should outlive this.
   const std::vector<autofill::AutofillProfile*>& billing_profiles_;
 
   const std::string app_locale_;
 
+  PaymentInstrument::Delegate* delegate_;
+  PaymentRequestDelegate* payment_request_delegate_;
+
+  base::WeakPtrFactory<AutofillPaymentInstrument> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(AutofillPaymentInstrument);
 };