[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 f5660203f2403f7c8798ba4605d285f6bd3a7318..d25ecce282032ef3478804e4e81bd710655fd8a4 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/order_summary_view_controller.h"
 #include "chrome/browser/ui/views/payments/payment_method_view_controller.h"
 #include "chrome/browser/ui/views/payments/payment_sheet_view_controller.h"
@@ -31,6 +32,66 @@ payments::PaymentRequestDialog* CreatePaymentRequestDialog(
 }  // namespace chrome
 
 namespace payments {
+
+class CvcUnmaskUIDelegate
+    : public autofill::payments::FullCardRequest::UIDelegate,
+      public CvcUnmaskViewController::Observer {
+ public:
+  explicit CvcUnmaskUIDelegate(PaymentRequestDialogView* dialog,
+                               PaymentRequestSpec* spec,
+                               PaymentRequestState* state)
+      : dialog_(dialog), spec_(spec), state_(state), weak_ptr_factory_(this) {}
+
+  ~CvcUnmaskUIDelegate() override { OnClosed(); }
+
+  // autofill::payments::FullCardRequest::UIDelegate:
+  void ShowUnmaskPrompt(
+      const autofill::CreditCard& card,
+      autofill::AutofillClient::UnmaskCardReason reason,
+      base::WeakPtr<autofill::CardUnmaskDelegate> delegate) override {
+    unmask_delegate_ = delegate;
+    std::unique_ptr<CvcUnmaskViewController> view_controller =
+        base::MakeUnique<CvcUnmaskViewController>(
+            spec_, state_, dialog_, card.TypeAndLastFourDigits(), card.type());
+
+    view_controller->AddObserver(this);
+    dialog_->ShowCvcUnmaskSheet(std::move(view_controller));
+  }
+
+  void OnUnmaskVerificationResult(
+      autofill::AutofillClient::PaymentsRpcResult result) override {
+    // TODO(anthonyvd): Check result and display UI.
+  }
+
+  // CvcUnmaskViewController::Observer
+  void OnCvcConfirmed(const base::string16& cvc) override {
+    if (unmask_delegate_) {
+      autofill::CardUnmaskDelegate::UnmaskResponse response;
+      response.cvc = cvc;
+      unmask_delegate_->OnUnmaskResponse(response);
+    }
+  }
+
+  void OnClosed() override {
+    // TODO(anthonyvd): The dialog was closed, notify the full card request.
+  }
+
+  base::WeakPtr<CvcUnmaskUIDelegate> AsWeakPtr() {
+    return weak_ptr_factory_.GetWeakPtr();
+  }
+
+ private:
+  PaymentRequestDialogView* dialog_;
+  PaymentRequestSpec* spec_;
+  PaymentRequestState* state_;
+
+  base::WeakPtr<autofill::CardUnmaskDelegate> unmask_delegate_;
+
+  base::WeakPtrFactory<CvcUnmaskUIDelegate> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(CvcUnmaskUIDelegate);
+};
+
 namespace {
 
 // This function creates an instance of a PaymentRequestSheetController
@@ -156,6 +217,13 @@ void PaymentRequestDialogView::ShowShippingOptionSheet() {
                    /* animate = */ true);
 }
 
+void PaymentRequestDialogView::ShowCvcUnmaskSheet(
+    std::unique_ptr<CvcUnmaskViewController> view_controller) {
+  view_stack_.Push(CreateViewAndInstallController(std::move(view_controller),
+                                                  &controller_map_),
+                   /* animate = */ true);
+}
+
 void PaymentRequestDialogView::ShowCreditCardEditor() {
   view_stack_.Push(CreateViewAndInstallController(
                        base::MakeUnique<CreditCardEditorViewController>(
@@ -191,6 +259,13 @@ void PaymentRequestDialogView::CloseDialog() {
   GetWidget()->Close();
 }
 
+base::WeakPtr<autofill::payments::FullCardRequest::UIDelegate>
+PaymentRequestDialogView::GetFullCardRequestUIDelegate() {
+  cvc_unmask_ui_delegate_ = base::MakeUnique<CvcUnmaskUIDelegate>(
+      this, request_->spec(), request_->state());
+  return cvc_unmask_ui_delegate_->AsWeakPtr();
+}
+
 void PaymentRequestDialogView::ShowInitialPaymentSheet() {
   view_stack_.Push(CreateViewAndInstallController(
                        base::MakeUnique<PaymentSheetViewController>(