[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 02e891b907c801cf4ac269f7f709feb1524750fc..5f524f44c00d5a5b2c6aab65a809464cd3b809fd 100644
--- a/components/autofill/core/browser/autofill_experiments.h
+++ b/components/autofill/core/browser/autofill_experiments.h
@@ -29,6 +29,7 @@ extern const base::Feature kAutofillCreditCardSigninPromo;
 extern const base::Feature kAutofillProfileCleanup;
 extern const base::Feature kAutofillScanCardholderName;
 extern const base::Feature kAutofillCreditCardPopupLayout;
+extern const base::Feature kAutofillCreditCardLastUsedDateDisplay;
 extern const char kCreditCardSigninPromoImpressionLimitParamKey[];
 extern const char kAutofillCreditCardPopupSettingsSuggestionValueKey[];
 
@@ -71,6 +72,10 @@ bool IsCreditCardUploadEnabled(const PrefService* pref_service,
 // enabled.
 bool IsAutofillCreditCardPopupLayoutExperimentEnabled();
 
+// Returns whether Autofill credit card last used date display experiment is
+// enabled.
+bool IsAutofillCreditCardLastUsedDateDisplayExperimentEnabled();

[csashi, 2017/01/03 20:54:06]

Would DisplayLastUsedDateInsteadOfExpDate (or some equivalent) be a better name
for this?

[jiahuiguo, 2017/01/18 00:13:44]

Synced with Alex, we want to show the expiration date along with the last used
date in one variation. So this name may be more generic?

+
 // Returns the background color for credit card autofill popup, or
 // |SK_ColorTRANSPARENT| if the new credit card autofill popup layout experiment
 // is not enabled.