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

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

 // Copyright 2017 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_EDITOR_VIEW_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_PAYMENTS_EDITOR_VIEW_CONTROLLER_H_
 
 #include <memory>
 #include <tuple>
 #include <unordered_map>
@@ skipping 75 matching lines @@
   using ErrorLabelMap =
       std::map<const EditorField, views::Label*, EditorField::Compare>;
 
   // Does not take ownership of the arguments, which should outlive this object.
   EditorViewController(PaymentRequest* request,
                        PaymentRequestDialogView* dialog);
   ~EditorViewController() override;
 
   // PaymentRequestSheetController:
   std::unique_ptr<views::View> CreateView() override;
-  std::unique_ptr<views::View> CreateLeadingFooterView() override;
+  std::unique_ptr<views::View> CreateExtraView() override;

[Mathieu, 2017/02/23 16:22:03]

optional nit: CreateExtraFooterView? It would be more clear what's going on.

[anthonyvd, 2017/02/23 16:27:34]

Great suggestion, done.

 
   virtual std::unique_ptr<views::View> CreateHeaderView() = 0;
   // Returns the field definitions used to build the UI.
   virtual std::vector<EditorField> GetFieldDefinitions() = 0;
   // Validates the data entered and attempts to save; returns true on success.
   virtual bool ValidateModelAndSave() = 0;
   // Creates a ValidationDelegate which knows how to validate for a given
   // |field| definition.
   virtual std::unique_ptr<ValidationDelegate> CreateValidationDelegate(
       const EditorField& field) = 0;
@@ skipping 41 matching lines @@
   ComboboxMap comboboxes_;
   // Tracks the relationship between a field and its error label.
   ErrorLabelMap error_labels_;
 
   DISALLOW_COPY_AND_ASSIGN(EditorViewController);
 };
 
 }  // namespace payments
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PAYMENTS_EDITOR_VIEW_CONTROLLER_H_