Enable session resumption in SSLServerSocketNSS and unit tests

net/socket/ssl_client_socket_nss.cc

 // Copyright (c) 2010 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.
 
 // This file includes code SSLClientSocketNSS::DoVerifyCertComplete() derived
 // from AuthCertificateCallback() in
 // mozilla/security/manager/ssl/src/nsNSSCallbacks.cpp.
 
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
@@ skipping 596 matching lines @@
   // Support RFC 5077
   rv = SSL_OptionSet(nss_fd_, SSL_ENABLE_SESSION_TICKETS, PR_TRUE);
   if (rv != SECSuccess) {
     LogFailedNSSFunction(
         net_log_, "SSL_OptionSet", "SSL_ENABLE_SESSION_TICKETS");
   }
 #else
   #error "You need to install NSS-3.12 or later to build chromium"
 #endif
 
-  rv = SSL_OptionSet(nss_fd_, SSL_NO_CACHE,
-                     ssl_config_.session_resume_disabled);
-  if (rv != SECSuccess) {
-    LogFailedNSSFunction(net_log_, "SSL_OptionSet", "SSL_NO_CACHE");
-    return ERR_UNEXPECTED;
-  }
-
 #ifdef SSL_ENABLE_DEFLATE
   // Some web servers have been found to break if TLS is used *or* if DEFLATE
   // is advertised. Thus, if TLS is disabled (probably because we are doing
   // SSLv3 fallback), we disable DEFLATE also.
   // See http://crbug.com/31628
   rv = SSL_OptionSet(nss_fd_, SSL_ENABLE_DEFLATE, ssl_config_.tls1_enabled);
   if (rv != SECSuccess)
     LogFailedNSSFunction(net_log_, "SSL_OptionSet", "SSL_ENABLE_DEFLATE");
 #endif
 
@@ skipping 1882 matching lines @@
     case SSL_CONNECTION_VERSION_TLS1_1:
       UpdateConnectionTypeHistograms(CONNECTION_SSL_TLS1_1);
       break;
     case SSL_CONNECTION_VERSION_TLS1_2:
       UpdateConnectionTypeHistograms(CONNECTION_SSL_TLS1_2);
       break;
   };
 }
 
 }  // namespace net