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

components/payments/payment_request.h

Index: components/payments/payment_request.h
diff --git a/components/payments/payment_request.h b/components/payments/payment_request.h
index fcb582039e85498b395f58ad6b1738065dbdda6c..0207c6b1b705398b3bc83964b2227d12ac3ff805 100644
--- a/components/payments/payment_request.h
+++ b/components/payments/payment_request.h
@@ -91,7 +91,9 @@ class PaymentRequest : payments::mojom::PaymentRequest {
     selected_contact_profile_ = profile;
   }
 
-  const std::vector<autofill::CreditCard*>& credit_cards();
+  const std::vector<autofill::CreditCard*>& credit_cards() {
+    return credit_cards_;
+  }
 
   // Returns the currently selected credit card for this PaymentRequest flow.
   // It's not guaranteed to be complete. Returns nullptr if there is no selected