Adding ERR_SOCKET_IS_CONNECTED.

net/base/net_errors_win.cc

 // Copyright (c) 2011 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/base/net_errors.h"
 
 #include <winsock2.h>
 
 #include "base/logging.h"
 
@@ skipping 19 matching lines @@
     case WSAECONNRESET:
     case WSAENETRESET:  // Related to keep-alive
       return ERR_CONNECTION_RESET;
     case WSAECONNABORTED:
       return ERR_CONNECTION_ABORTED;
     case WSAECONNREFUSED:
       return ERR_CONNECTION_REFUSED;
     case WSA_IO_INCOMPLETE:
     case WSAEDISCON:
       return ERR_CONNECTION_CLOSED;
+    case WSAEISCONN:
+      return ERR_SOCKET_IS_CONNECTED;
     case WSAEHOSTUNREACH:
     case WSAENETUNREACH:
       return ERR_ADDRESS_UNREACHABLE;
     case WSAEADDRNOTAVAIL:
       return ERR_ADDRESS_INVALID;
     case WSAEMSGSIZE:
       return ERR_MSG_TOO_BIG;
     case WSAENOTCONN:
       return ERR_SOCKET_NOT_CONNECTED;
     case WSAEAFNOSUPPORT:
@@ skipping 62 matching lines @@
     case ERROR_SUCCESS:
       return OK;
     default:
       LOG(WARNING) << "Unknown error " << os_error
                    << " mapped to net::ERR_FAILED";
       return ERR_FAILED;
   }
 }
 
 }  // namespace net