[Payments] Add the "Cards accepted" row at the top of CC editor.

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

Index: chrome/browser/ui/views/payments/payment_request_views_util.h
diff --git a/chrome/browser/ui/views/payments/payment_request_views_util.h b/chrome/browser/ui/views/payments/payment_request_views_util.h
index de9c6a3bf0110b83bd558a65760778c27e575d0d..016e9c726d8099a15721cdf8afa9770987cb066f 100644
--- a/chrome/browser/ui/views/payments/payment_request_views_util.h
+++ b/chrome/browser/ui/views/payments/payment_request_views_util.h
@@ -16,6 +16,7 @@ class AutofillProfile;
 
 namespace views {
 class Border;
+class ImageView;
 class VectorIconButtonDelegate;
 class View;
 }
@@ -49,6 +50,11 @@ std::unique_ptr<views::View> CreateSheetHeaderView(
     const base::string16& title,
     views::VectorIconButtonDelegate* delegate);
 
+// Returns a card image view for the given |card_type|. Includes a rounded rect
+// border. Callers need to set the size of the resulting ImageView.
+std::unique_ptr<views::ImageView> CreateCardIconView(
+    const std::string& card_type);
+
 // Represents formatting options for each of the different contexts in which an
 // Address label may be displayed.
 enum class AddressStyleType { SUMMARY, DETAILED };