[Autofill] Don't fill expiration date of expired credit cards.

components/autofill/core/browser/credit_card.h

Index: components/autofill/core/browser/credit_card.h
diff --git a/components/autofill/core/browser/credit_card.h b/components/autofill/core/browser/credit_card.h
index 56e9579411e5ccf454ecf9b2e1288547791e9c50..606fc1f45d84cdd332d02a372cf8f6499e1f65fe 100644
--- a/components/autofill/core/browser/credit_card.h
+++ b/components/autofill/core/browser/credit_card.h
@@ -192,6 +192,9 @@ class CreditCard : public AutofillDataModel {
                            const std::string& app_locale,
                            int* num);
 
+  // Returns whether the credit card is expired based on |current_time|.
+  bool IsExpired(const base::Time& current_time) const;
+
  private:
   // FormGroup:
   void GetSupportedTypes(ServerFieldTypeSet* supported_types) const override;