[Web Payments] Implement the CVC Unmask dialog.

components/payments/content/payment_request_state.cc

Index: components/payments/content/payment_request_state.cc
diff --git a/components/payments/content/payment_request_state.cc b/components/payments/content/payment_request_state.cc
index c2d0960bb798f20121997d628419c9202c6b8073..83b204d54f72be2729030c3b87e6a75cc0257b33 100644
--- a/components/payments/content/payment_request_state.cc
+++ b/components/payments/content/payment_request_state.cc
@@ -11,6 +11,7 @@
 #include "components/autofill/core/browser/autofill_profile.h"
 #include "components/autofill/core/browser/credit_card.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
+#include "components/payments/content/payment_request_delegate.h"
 #include "components/payments/content/payment_request_spec.h"
 #include "components/payments/content/payment_response_helper.h"
 #include "components/payments/core/autofill_payment_instrument.h"
@@ -183,7 +184,8 @@ void PaymentRequestState::PopulateProfileCache() {
     // indirectly owned by this object.
     std::unique_ptr<PaymentInstrument> instrument =
         base::MakeUnique<AutofillPaymentInstrument>(
-            basic_card_network, *card, shipping_profiles_, app_locale_);
+            basic_card_network, *card, shipping_profiles_, app_locale_,
+            delegate_->GetPaymentRequestDelegate());
     available_instruments_.push_back(std::move(instrument));
   }
 }