[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 c218b742780e39202c1d9457b8d2403dd8c4eb2c..4f9a86aa2dff2e07a5090a39350928bb75274dee 100644
--- a/components/autofill/core/browser/autofill_experiments.h
+++ b/components/autofill/core/browser/autofill_experiments.h
@@ -27,8 +27,10 @@ struct Suggestion;
 extern const base::Feature kAutofillCreditCardAssist;
 extern const base::Feature kAutofillScanCardholderName;
 extern const base::Feature kAutofillCreditCardPopupLayout;
+extern const base::Feature kAutofillCreditCardLastUsedDateDisplay;
 extern const char kCreditCardSigninPromoImpressionLimitParamKey[];
 extern const char kAutofillCreditCardPopupSettingsSuggestionValueKey[];
+extern const char kAutofillCreditCardLastUsedDateShowExpirationDateKey[];
 
 // Returns true if autofill should be enabled. See also
 // IsInAutofillSuggestionsDisabledExperiment below.
@@ -59,6 +61,13 @@ 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();
+
 // Returns the background color for credit card autofill popup, or
 // |SK_ColorTRANSPARENT| if the new credit card autofill popup layout experiment
 // is not enabled.