[WebPayments] Start populating the Payment Sheet.

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

Index: chrome/browser/ui/views/payments/payment_sheet_view_controller.h
diff --git a/chrome/browser/ui/views/payments/payment_sheet_view_controller.h b/chrome/browser/ui/views/payments/payment_sheet_view_controller.h
index 85edb0c664868a0c64e1e13e4297d3f9e11690ba..d7505ca0e062e814e0b77f3ed7858ff454e9d666 100644
--- a/chrome/browser/ui/views/payments/payment_sheet_view_controller.h
+++ b/chrome/browser/ui/views/payments/payment_sheet_view_controller.h
@@ -7,7 +7,7 @@
 
 #include "base/macros.h"
 #include "chrome/browser/ui/views/payments/payment_request_sheet_controller.h"
-#include "ui/views/controls/button/button.h"
+#include "ui/views/controls/button/vector_icon_button_delegate.h"
 
 namespace payments {
 
@@ -17,7 +17,7 @@ class PaymentRequestDialog;
 // The PaymentRequestSheetController subtype for the Payment Sheet screen of the
 // Payment Request dialog.
 class PaymentSheetViewController : public PaymentRequestSheetController,
-                                   public views::ButtonListener {
+                                   public views::VectorIconButtonDelegate {
  public:
   // Does not take ownership of the arguments, which should outlive this object.
   PaymentSheetViewController(PaymentRequestImpl* impl,
@@ -28,9 +28,12 @@ class PaymentSheetViewController : public PaymentRequestSheetController,
   std::unique_ptr<views::View> CreateView() override;
 
  private:
-  // views::ButtonListener:
+  // views::VectorIconButtonDelegate:
   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
+  std::unique_ptr<views::View> CreateOrderSummarySectionContent();
+  std::unique_ptr<views::View> CreatePaymentSheetSummaryRow();
+
   DISALLOW_COPY_AND_ASSIGN(PaymentSheetViewController);
 };