Remove SSL 2.0 support.

net/socket/ssl_client_socket_mac.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.
 
 #include "net/socket/ssl_client_socket_mac.h"
 
 #include <CoreServices/CoreServices.h>
 #include <netdb.h>
 #include <sys/socket.h>
 #include <sys/types.h>
@@ skipping 751 matching lines @@
 int SSLClientSocketMac::InitializeSSLContext() {
   VLOG(1) << "----- InitializeSSLContext";
   OSStatus status = noErr;
 
   status = SSLNewContext(false, &ssl_context_);
   if (status)
     return NetErrorFromOSStatus(status);
 
   status = SSLSetProtocolVersionEnabled(ssl_context_,
                                         kSSLProtocol2,
-                                        ssl_config_.ssl2_enabled);
+                                        false);
   if (status)
     return NetErrorFromOSStatus(status);
 
   status = SSLSetProtocolVersionEnabled(ssl_context_,
                                         kSSLProtocol3,
                                         ssl_config_.ssl3_enabled);
   if (status)
     return NetErrorFromOSStatus(status);
 
   status = SSLSetProtocolVersionEnabled(ssl_context_,
@@ skipping 536 matching lines @@
   if (rv < 0 && rv != ERR_IO_PENDING) {
     us->write_io_buf_ = NULL;
     return OSStatusFromNetError(rv);
   }
 
   // always lie to our caller
   return noErr;
 }
 
 }  // namespace net