[Web Payments] Re-add extra view in the footer.

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // 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_SHEET_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 15 matching lines @@
  public:
   // Objects of this class are owned by |dialog|, so it's a non-owned pointer
   // that should be valid throughout this object's lifetime.
   // |request| is also not owned by this and is guaranteed to outlive dialog.
   // Neither |request| or |dialog| should be null.
   PaymentRequestSheetController(PaymentRequest* request,
                                 PaymentRequestDialogView* dialog);
   ~PaymentRequestSheetController() override {}
 
   virtual std::unique_ptr<views::View> CreateView() = 0;
-  // A leading view to complement the button(s). See CreateFooterView for how
-  // this is used and what insets are already applied.
-  virtual std::unique_ptr<views::View> CreateLeadingFooterView();
 
   // The PaymentRequest object associated with this instance of the dialog.
   // Caller should not take ownership of the result.
   PaymentRequest* request() { return request_; }
 
   // The dialog that contains and owns this object.
   // Caller should not take ownership of the result.
   PaymentRequestDialogView* dialog() { return dialog_; }
 
  protected:
   // Creates and returns the primary action button for this sheet. It's
   // typically a blue button with the "Pay" or "Done" labels. Subclasses may
   // return an empty std::unique_ptr (nullptr) to indicate that no primary
   // button should be displayed. The caller takes ownership of the button but
   // the view is guaranteed to be outlived by the controller so subclasses may
   // retain a raw pointer to the returned button (for example to control its
   // enabled state).
   virtual std::unique_ptr<views::Button> CreatePrimaryButton();
 
   // Creates and returns the view to be displayed next to the "Pay" and "Cancel"
   // buttons. May return an empty std::unique_ptr (nullptr) to indicate that no
   // extra view is to be displayed.The caller takes ownership of the view but
   // the view is guaranteed to be outlived by the controller so subclasses may
   // retain a raw pointer to the returned view (for example to control its
   // enabled state).
   // +---------------------------+
   // | EXTRA VIEW | PAY | CANCEL |
   // +---------------------------+
-  virtual std::unique_ptr<views::View> CreateExtraView();
+  virtual std::unique_ptr<views::View> CreateExtraFooterView();
 
   // views::VectorIconButtonDelegate:
   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
   // Creates a view to be displayed in the PaymentRequestDialog.
   // |header_view| is the view displayed on top of the dialog, containing title,
   // (optional) back button, and close buttons.
   // |content_view| is displayed between |header_view| and the pay/cancel
   // buttons. Also adds the footer, returned by CreateFooterView(), which is
   // clamped to the bottom of the containing view.  The returned view takes
@@ skipping 19 matching lines @@
   PaymentRequest* request_;
   // Not owned. Will outlive this.
   PaymentRequestDialogView* dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(PaymentRequestSheetController);
 };
 
 }  // namespace payments
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_PAYMENT_REQUEST_SHEET_CONTROLLER_H_