[Autofill] Credit Card Autofill Last Used Date Experiment

components/autofill/core/browser/autofill_experiments.h

Index: components/autofill/core/browser/autofill_experiments.h
diff --git a/components/autofill/core/browser/autofill_experiments.h b/components/autofill/core/browser/autofill_experiments.h
index 828c1890c7e6e181c415ced6637a30db4ea44522..61bfe27e4d2224ec1fccf1318c39993ec386544b 100644
--- a/components/autofill/core/browser/autofill_experiments.h
+++ b/components/autofill/core/browser/autofill_experiments.h
@@ -28,6 +28,7 @@ extern const base::Feature kAutofillCreditCardAssist;
 extern const base::Feature kAutofillCreditCardSigninPromo;
 extern const base::Feature kAutofillScanCardholderName;
 extern const base::Feature kAutofillCreditCardPopupLayout;
+extern const base::Feature kAutofillCreditCardLastUsedDateDisplay;
 extern const char kCreditCardSigninPromoImpressionLimitParamKey[];
 extern const char kAutofillCreditCardPopupSettingsSuggestionValueKey[];
 
@@ -67,6 +68,16 @@ bool IsCreditCardUploadEnabled(const PrefService* pref_service,
 // enabled.
 bool IsAutofillCreditCardPopupLayoutExperimentEnabled();
 
+// Returns whether Autofill credit card last used date display experiment is
+// enabled.
+bool IsAutofillCreditCardLastUsedDateDisplayExperimentEnabled();
+
+// Returns whether Autofill credit card last used date shows expiration date.
+bool ShowExpirationDateInAutofillCreditCardLastUsedDate();
+
+// Return whether Autofill credit card last used date shows time detail.
+bool ShowTimeDetailInAutofillCreditCardLastUsedDate();
+
 // Returns the background color for credit card autofill popup, or
 // |SK_ColorTRANSPARENT| if the new credit card autofill popup layout experiment
 // is not enabled.