[Web Payments] Refactor sheet display to allow updating view content

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

Index: chrome/browser/ui/views/payments/editor_view_controller.h
diff --git a/chrome/browser/ui/views/payments/editor_view_controller.h b/chrome/browser/ui/views/payments/editor_view_controller.h
index 3ef846896e78fd6fc3c17d1c0b18f7ca6943df0d..4c089a4e6734eaf055570097caa615ab518d4bc8 100644
--- a/chrome/browser/ui/views/payments/editor_view_controller.h
+++ b/chrome/browser/ui/views/payments/editor_view_controller.h
@@ -94,9 +94,6 @@ class EditorViewController : public PaymentRequestSheetController,
                        PaymentRequestDialogView* dialog);
   ~EditorViewController() override;
 
-  // PaymentRequestSheetController:
-  std::unique_ptr<views::View> CreateView() override;
-
   // Will display |error_message| alongside the input field represented by
   // |field|.
   void DisplayErrorMessageForField(const EditorField& field,
@@ -107,8 +104,6 @@ class EditorViewController : public PaymentRequestSheetController,
 
  protected:
   virtual std::unique_ptr<views::View> CreateHeaderView() = 0;
-  // Returns the resource id of the view header title.
-  virtual int GetViewHeaderTitleId() const = 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.
@@ -122,6 +117,7 @@ class EditorViewController : public PaymentRequestSheetController,
 
   // PaymentRequestSheetController;
   std::unique_ptr<views::Button> CreatePrimaryButton() override;
+  void FillContentView(views::View* content_view) override;
   std::unique_ptr<views::View> CreateExtraFooterView() override;
 
  private: