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 27 matching lines @@
     case WSAEDISCON:
       return ERR_CONNECTION_CLOSED;
     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;

[wtc, 2013/05/01 01:01:00]

Nit: could you add the new error code here?

[Bei Zhang, 2013/05/01 03:49:26]

Done.

     case WSAEAFNOSUPPORT:
       return ERR_ADDRESS_UNREACHABLE;
     case WSAEINVAL:
       return ERR_INVALID_ARGUMENT;
     case WSAEADDRINUSE:
       return ERR_ADDRESS_IN_USE;
+    case WSAEISCONN:
+      return ERR_SOCKET_IS_CONNECTED;
 
     // System errors.
     case ERROR_FILE_NOT_FOUND:  // The system cannot find the file specified.
       return ERR_FILE_NOT_FOUND;
     case ERROR_PATH_NOT_FOUND:  // The system cannot find the path specified.
       return ERR_FILE_NOT_FOUND;
     case ERROR_TOO_MANY_OPEN_FILES:  // The system cannot open the file.
       return ERR_INSUFFICIENT_RESOURCES;
     case ERROR_ACCESS_DENIED:  // Access is denied.
       return ERR_ACCESS_DENIED;
@@ skipping 47 matching lines @@
     case ERROR_SUCCESS:
       return OK;
     default:
       LOG(WARNING) << "Unknown error " << os_error
                    << " mapped to net::ERR_FAILED";
       return ERR_FAILED;
   }
 }
 
 }  // namespace net