Update Chrome Upstream flow to reflect new UI mocks

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 8588062dbff2c845f6594cc4ec8abe995162e401..8a91c48ddcd3251f729e6a29a833e6627ea5f0e6 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -255,6 +255,12 @@ const char kEnableAutofillCreditCardUploadCvcPromptDescription[] =
     "If enabled, requests missing CVC when offering to upload credit cards to "
     "Google Payments.";
 
+const char kEnableAutofillCreditCardUploadNewUiName[] =
+    "Enable updated UI for Autofill credit card upload";
+const char kEnableAutofillCreditCardUploadNewUiDescription[] =
+    "If enabled, displays a new save card bubble/infobar design when offering "
+    "to upload credit cards to Google Payments.";
+
 const char kEnableBreakingNewsPushName[] = "Breaking News Push";
 const char kEnableBreakingNewsPushDescription[] =
     "Listen for breaking news content suggestions (e.g. for New Tab Page) "