Adding additional comparison operators for GeneralizedTime.

net/der/parse_values.h

Index: net/der/parse_values.h
diff --git a/net/der/parse_values.h b/net/der/parse_values.h
index 4f503566dfde8530fd3d78feaa23f4bf2a7d1bce..161b098ecbe08f314e5fcc5508f04a6b7c143cb6 100644
--- a/net/der/parse_values.h
+++ b/net/der/parse_values.h
@@ -98,6 +98,12 @@ struct GeneralizedTime {
 
 NET_EXPORT_PRIVATE bool operator<(const GeneralizedTime& lhs,
                                   const GeneralizedTime& rhs);
+NET_EXPORT_PRIVATE bool operator<=(const GeneralizedTime& lhs,
+                                   const GeneralizedTime& rhs);
+NET_EXPORT_PRIVATE bool operator>(const GeneralizedTime& lhs,
+                                  const GeneralizedTime& rhs);
+NET_EXPORT_PRIVATE bool operator>=(const GeneralizedTime& lhs,
+                                   const GeneralizedTime& rhs);
 
 // Reads a DER-encoded ASN.1 UTCTime value from |in| and puts the resulting
 // value in |out|, returning true if the UTCTime could be parsed successfully.