[AF] Add inline GPay logo in Android Downstream CVC Prompt

Screenshot with feature enabled:
https://screenshot.googleplex.com/tWdvKkwxU8G

RTL Screenshot with feature enabled:
https://screenshot.googleplex.com/QS1n2b9ytxr

Screenshot with feature disabled:
https://screenshot.googleplex.com/jtp4wPe9Ng1

Change-Id: I56896520e26fe877584850d37a1e3095317910dc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2327835
Reviewed-by: Rouslan Solomakhin <[email protected]>
Reviewed-by: Tommy Martino <[email protected]>
Reviewed-by: Pavel Yatsuk <[email protected]>
Reviewed-by: Matthew Jones <[email protected]>
Reviewed-by: Siddharth Shah <[email protected]>
Reviewed-by: Jared Saul <[email protected]>
Commit-Queue: Anne Lim <[email protected]>
Cr-Commit-Position: refs/heads/master@{#798340}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 60ffdcb..fd9336e4 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -566,6 +566,11 @@
     "authenticator (if available) to verify card ownership when retrieving "
     "credit cards from Google Payments.";
 
+const char kEnableAutofillCreditCardCvcPromptGoogleLogoName[] =
+    "Enable Google Pay branding on CVC prompt on Android";
+const char kEnableAutofillCreditCardCvcPromptGoogleLogoDescription[] =
+    "If enabled, show the Google Pay logo on CVC prompt on Android.";
+
 const char kEnableAutofillCreditCardUploadFeedbackName[] =
     "Enable feedback for credit card upload flow";
 const char kEnableAutofillCreditCardUploadFeedbackDescription[] =