Add a dedicated error code for TLS 1.3 interference.

net/test/spawned_test_server/base_test_server.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_TEST_SPAWNED_TEST_SERVER_BASE_TEST_SERVER_H_
 #define NET_TEST_SPAWNED_TEST_SERVER_BASE_TEST_SERVER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 136 matching lines @@
       // be able to connect if only 3DES is specified.
       BULK_CIPHER_3DES = (1 << 3),
 
       BULK_CIPHER_AES128GCM = (1 << 4),
     };
 
     // NOTE: the values of these enumerators are passed to the the Python test
     // server. Do not change them.
     enum TLSIntolerantLevel {
       TLS_INTOLERANT_NONE = 0,
-      TLS_INTOLERANT_ALL = 1,  // Intolerant of all TLS versions.
+      TLS_INTOLERANT_ALL = 1,     // Intolerant of all TLS versions.
       TLS_INTOLERANT_TLS1_1 = 2,  // Intolerant of TLS 1.1 or higher.
       TLS_INTOLERANT_TLS1_2 = 3,  // Intolerant of TLS 1.2 or higher.
+      TLS_INTOLERANT_TLS1_3 = 4,  // Intolerant of TLS 1.3 or higher.
     };
 
     // Values which control how the server reacts in response to a ClientHello
     // it is intolerant of.
     enum TLSIntoleranceType {
       TLS_INTOLERANCE_ALERT = 0,  // Send a handshake_failure alert.
       TLS_INTOLERANCE_CLOSE = 1,  // Close the connection.
       TLS_INTOLERANCE_RESET = 2,  // Send a TCP reset.
     };
 
@@ skipping 251 matching lines @@
   bool no_anonymous_ftp_user_;
 
   std::unique_ptr<ScopedPortException> allowed_port_;
 
   DISALLOW_COPY_AND_ASSIGN(BaseTestServer);
 };
 
 }  // namespace net
 
 #endif  // NET_TEST_SPAWNED_TEST_SERVER_BASE_TEST_SERVER_H_