[Autofill] Suggest expired credit cards last.

components/autofill/core/browser/credit_card.cc

Index: components/autofill/core/browser/credit_card.cc
diff --git a/components/autofill/core/browser/credit_card.cc b/components/autofill/core/browser/credit_card.cc
index 649a81267fc9bc2b1cbda27b5c1cb4fb45857f53..d0e56c2cf4299b2a55817e1599cb03d6ba233641 100644
--- a/components/autofill/core/browser/credit_card.cc
+++ b/components/autofill/core/browser/credit_card.cc
@@ -647,6 +647,16 @@ bool CreditCard::IsValid() const {
              expiration_year_, expiration_month_, base::Time::Now());
 }
 
+bool CreditCard::IsExpired(base::Time::Exploded time) const {
+  // Credit cards with no saved expiration are never considered expired.
+  if (expiration_month_ == 0 && expiration_year_ == 0)
+    return false;
+
+  // Credit cards expire at the end of the specified month.
+  return expiration_year_ < time.year ||
+         (expiration_year_ == time.year && expiration_month_ < time.month);
+}
+
 void CreditCard::GetSupportedTypes(ServerFieldTypeSet* supported_types) const {
   supported_types->insert(CREDIT_CARD_NAME_FULL);
   supported_types->insert(CREDIT_CARD_NAME_FIRST);