[Payments] Upload card UI now has a CVC prompt

chrome/browser/flag_descriptions.h

Index: chrome/browser/flag_descriptions.h
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index cbc45e8c05ebc702cf56c45b0b528273a0ba835d..11eae5ceb291ce0f10169cfc6e3ce249fb540c5d 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -2613,6 +2613,14 @@ extern const char kEnableAutofillCreditCardLastUsedDateDisplay[];
 // card in autofill.
 extern const char kEnableAutofillCreditCardLastUsedDateDisplayDescription[];
 
+// Name for the flag to enable requesting CVC in the credit card upload "offer
+// to save" bubble if it was not already detected in the submitted form.
+extern const char kEnableAutofillCreditCardUploadCvcPrompt[];
+
+// Description for the flag to enable requesting CVC in the credit card upload
+// offer to save bubble if it was not detected during the checkout flow.
+extern const char kEnableAutofillCreditCardUploadCvcPromptDescription[];
+
 #if !defined(OS_ANDROID) && defined(GOOGLE_CHROME_BUILD)
 
 // Name for the flag to enable Google branding in the context menu.