Use version macros for SSL versions.

net/socket/ssl_client_socket_openssl.cc

 // Copyright (c) 2012 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.
 
 // OpenSSL binding for SSLClientSocket. The class layout and general principle
 // of operation is derived from SSLClientSocketNSS.
 
 #include "net/socket/ssl_client_socket_openssl.h"
 
 #include <errno.h>
@@ skipping 83 matching lines @@
 // Returns the net SSL version number (see ssl_connection_status_flags.h) for
 // this SSL connection.
 int GetNetSSLVersion(SSL* ssl) {
   switch (SSL_version(ssl)) {
     case SSL2_VERSION:
       return SSL_CONNECTION_VERSION_SSL2;
     case SSL3_VERSION:
       return SSL_CONNECTION_VERSION_SSL3;
     case TLS1_VERSION:
       return SSL_CONNECTION_VERSION_TLS1;
-    case 0x0302:
+    case TLS1_1_VERSION:
       return SSL_CONNECTION_VERSION_TLS1_1;
-    case 0x0303:
+    case TLS1_2_VERSION:
       return SSL_CONNECTION_VERSION_TLS1_2;
     default:
       return SSL_CONNECTION_VERSION_UNKNOWN;
   }
 }
 
 ScopedX509 OSCertHandleToOpenSSL(
     X509Certificate::OSCertHandle os_handle) {
 #if defined(USE_OPENSSL_CERTS)
   return ScopedX509(X509Certificate::DupOSCertHandle(os_handle));
@@ skipping 1701 matching lines @@
                                             ct::SCT_STATUS_LOG_UNKNOWN));
   }
 }
 
 scoped_refptr<X509Certificate>
 SSLClientSocketOpenSSL::GetUnverifiedServerCertificateChain() const {
   return server_cert_;
 }
 
 }  // namespace net