Add "AutofillScanCardholderName" feature.

components/autofill/core/browser/autofill_experiments.cc

Index: components/autofill/core/browser/autofill_experiments.cc
diff --git a/components/autofill/core/browser/autofill_experiments.cc b/components/autofill/core/browser/autofill_experiments.cc
index 39773509d4c229eef50697674580edc2d60db3df..999c578d1deb7ceb583ecfb6366cb9d6fbf8d4d7 100644
--- a/components/autofill/core/browser/autofill_experiments.cc
+++ b/components/autofill/core/browser/autofill_experiments.cc
@@ -21,10 +21,12 @@ namespace autofill {
 
 const base::Feature kAutofillCreditCardAssist{
     "AutofillCreditCardAssist", base::FEATURE_DISABLED_BY_DEFAULT};
-const base::Feature kAutofillProfileCleanup{"AutofillProfileCleanup",
-                                            base::FEATURE_DISABLED_BY_DEFAULT};
 const base::Feature kAutofillCreditCardSigninPromo{
     "AutofillCreditCardSigninPromo", base::FEATURE_DISABLED_BY_DEFAULT};
+const base::Feature kAutofillProfileCleanup{"AutofillProfileCleanup",
+                                            base::FEATURE_DISABLED_BY_DEFAULT};
+const base::Feature kAutofillScanCardHolderName{
+    "AutofillScanCardHolderName", base::FEATURE_ENABLED_BY_DEFAULT};
 const char kCreditCardSigninPromoImpressionLimitParamKey[] = "impression_limit";
 
 bool IsAutofillEnabled(const PrefService* pref_service) {