[Payments] Improve the closing of the PR dialog.

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

Index: chrome/browser/ui/views/payments/payment_request_dialog_view.h
diff --git a/chrome/browser/ui/views/payments/payment_request_dialog.h b/chrome/browser/ui/views/payments/payment_request_dialog_view.h
similarity index 69%
rename from chrome/browser/ui/views/payments/payment_request_dialog.h
rename to chrome/browser/ui/views/payments/payment_request_dialog_view.h
index e4f2ed16c6a0e88fd48166b4f3d95aee8a2e8f13..4dc0795081a7708bb6fca67ba1d88a176af08da0 100644
--- a/chrome/browser/ui/views/payments/payment_request_dialog.h
+++ b/chrome/browser/ui/views/payments/payment_request_dialog_view.h
@@ -2,14 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_DIALOG_H_
-#define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_DIALOG_H_
+#ifndef CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_DIALOG_VIEW_H_
+#define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_DIALOG_VIEW_H_
 
 #include <map>
 #include <memory>
 
 #include "base/macros.h"
 #include "chrome/browser/ui/views/payments/view_stack.h"
+#include "components/payments/payment_request_dialog.h"
 #include "ui/views/window/dialog_delegate.h"
 
 namespace payments {
@@ -17,16 +18,17 @@ namespace payments {
 class PaymentRequest;
 class PaymentRequestSheetController;
 
-// Maps views owned by PaymentRequestDialog::view_stack_ to their controller.
-// PaymentRequestDialog is responsible for listening for those views being
-// removed from the hierarchy and delete the associated controllers.
+// Maps views owned by PaymentRequestDialogView::view_stack_ to their
+// controller. PaymentRequestDialogView is responsible for listening for those
+// views being removed from the hierarchy and delete the associated controllers.
 using ControllerMap =
     std::map<views::View*, std::unique_ptr<PaymentRequestSheetController>>;
 
 // The dialog delegate that represents a desktop WebPayments dialog. This class
 // is responsible for displaying the view associated with the current state of
 // the WebPayments flow and managing the transition between those states.
-class PaymentRequestDialog : public views::DialogDelegateView {
+class PaymentRequestDialogView : public views::DialogDelegateView,
+                                 public PaymentRequestDialog {
  public:
   class ObserverForTest {
    public:
@@ -36,9 +38,9 @@ class PaymentRequestDialog : public views::DialogDelegateView {
   // Build a Dialog around the PaymentRequest object. |observer| is used to
   // be notified of dialog events as they happen (but may be NULL) and should
   // outlive this object.
-  PaymentRequestDialog(PaymentRequest* request,
-                       PaymentRequestDialog::ObserverForTest* observer);
-  ~PaymentRequestDialog() override;
+  PaymentRequestDialogView(PaymentRequest* request,
+                           PaymentRequestDialogView::ObserverForTest* observer);
+  ~PaymentRequestDialogView() override;
 
   // views::WidgetDelegate
   ui::ModalType GetModalType() const override;
@@ -48,35 +50,36 @@ class PaymentRequestDialog : public views::DialogDelegateView {
   bool ShouldShowCloseButton() const override;
   int GetDialogButtons() const override;
 
+  // payments::PaymentRequestDialog
+  void ShowDialog() override;
+  void CloseDialog() override;
+
   void GoBack();
   void ShowOrderSummary();
   void ShowPaymentMethodSheet();
-  void CloseDialog();
-
-  static void ShowWebModalPaymentDialog(PaymentRequestDialog* dialog,
-                                        PaymentRequest* request);
 
  private:
   void ShowInitialPaymentSheet();
 
   // views::View
   gfx::Size GetPreferredSize() const override;
-  void ViewHierarchyChanged(const ViewHierarchyChangedDetails& details)
-      override;
+  void ViewHierarchyChanged(
+      const ViewHierarchyChangedDetails& details) override;
 
   // Non-owned reference to the PaymentRequest that initiated this dialog. Since
   // the PaymentRequest object always outlives this one, the pointer should
   // always be valid even though there is no direct ownership relationship
   // between the two.
   PaymentRequest* request_;
-  // May be null.
-  ObserverForTest* observer_;
   ControllerMap controller_map_;
   ViewStack view_stack_;
 
-  DISALLOW_COPY_AND_ASSIGN(PaymentRequestDialog);
+  // May be null.
+  ObserverForTest* observer_for_testing_;
+
+  DISALLOW_COPY_AND_ASSIGN(PaymentRequestDialogView);
 };
 
 }  // namespace payments
 
-#endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_DIALOG_H_
+#endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_DIALOG_VIEW_H_