[Web Payments] Implement the CVC Unmask dialog.

chrome/browser/ui/views/payments/payment_request_dialog_view.cc

Index: chrome/browser/ui/views/payments/payment_request_dialog_view.cc
diff --git a/chrome/browser/ui/views/payments/payment_request_dialog_view.cc b/chrome/browser/ui/views/payments/payment_request_dialog_view.cc
index c29aa0efebc47eaea1132d0e98ada0976f084641..e2adb39d51be77a8964ba921497bd41fcc84815c 100644
--- a/chrome/browser/ui/views/payments/payment_request_dialog_view.cc
+++ b/chrome/browser/ui/views/payments/payment_request_dialog_view.cc
@@ -9,6 +9,7 @@
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/ui/views/payments/credit_card_editor_view_controller.h"
+#include "chrome/browser/ui/views/payments/cvc_unmask_view_controller.h"
 #include "chrome/browser/ui/views/payments/error_message_view_controller.h"
 #include "chrome/browser/ui/views/payments/order_summary_view_controller.h"
 #include "chrome/browser/ui/views/payments/payment_method_view_controller.h"
@@ -33,6 +34,7 @@ payments::PaymentRequestDialog* CreatePaymentRequestDialog(
 }  // namespace chrome
 
 namespace payments {
+
 namespace {
 
 // This function creates an instance of a PaymentRequestSheetController
@@ -178,6 +180,18 @@ void PaymentRequestDialogView::ShowShippingOptionSheet() {
                    /* animate = */ true);
 }
 
+void PaymentRequestDialogView::ShowCvcUnmaskPrompt(
+    const autofill::CreditCard& credit_card,
+    base::WeakPtr<autofill::payments::FullCardRequest::ResultDelegate>
+        result_delegate) {
+  view_stack_.Push(
+      CreateViewAndInstallController(base::MakeUnique<CvcUnmaskViewController>(
+                                         request_->spec(), request_->state(),
+                                         this, credit_card, result_delegate),
+                                     &controller_map_),
+      /* animate = */ true);
+}
+
 void PaymentRequestDialogView::ShowCreditCardEditor() {
   view_stack_.Push(CreateViewAndInstallController(
                        base::MakeUnique<CreditCardEditorViewController>(