[Payments] Refactor into PaymentRequestState and Spec

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 1c3a499ea341f732ee39fe71d18aed2d62c8684f..0d7930ce4f698ea37569bcecb50f2ebaddab50fd 100644
--- a/chrome/browser/ui/views/payments/payment_sheet_view_controller.h
+++ b/chrome/browser/ui/views/payments/payment_sheet_view_controller.h
@@ -10,6 +10,7 @@
 #include "base/macros.h"
 #include "chrome/browser/ui/views/payments/payment_request_sheet_controller.h"
 #include "components/payments/content/payment_request.h"
+#include "components/payments/content/payment_request_state.h"
 
 namespace payments {
 
@@ -19,7 +20,7 @@ class PaymentRequestDialogView;
 // The PaymentRequestSheetController subtype for the Payment Sheet screen of the
 // Payment Request dialog.
 class PaymentSheetViewController : public PaymentRequestSheetController,
-                                   public PaymentRequest::Observer {
+                                   public PaymentRequestState::Observer {
  public:
   // Does not take ownership of the arguments, which should outlive this object.
   PaymentSheetViewController(PaymentRequest* request,
@@ -29,7 +30,7 @@ class PaymentSheetViewController : public PaymentRequestSheetController,
   // PaymentRequestSheetController:
   std::unique_ptr<views::View> CreateView() override;
 
-  // PaymentRequest::Observer:
+  // PaymentRequestState::Observer:
   void OnSelectedInformationChanged() override;
 
  private: