Fix win32 Socket test errors

runtime/bin/socket_win.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#include <winsock2.h>
-#include <ws2tcpip.h>
-#include <mswsock.h>
-
 #include "bin/builtin.h"
 #include "bin/eventhandler.h"
 #include "bin/socket.h"
 
 bool Socket::Initialize() {
   int err;
   WSADATA winsock_data;
   WORD version_requested = MAKEWORD(1, 0);
   err = WSAStartup(version_requested, &winsock_data);
   if (err != 0) {
@@ skipping 29 matching lines @@
                   reinterpret_cast<struct sockaddr *>(&socket_address),
                   &size)) {
     fprintf(stderr, "Error getsockname: %s\n", strerror(errno));
     return 0;
   }
   return ntohs(socket_address.sin_port);
 }
 
 
 bool Socket::GetRemotePeer(intptr_t fd, char *host, intptr_t *port) {
-  ASSERT(DART_INET_ADDRSTRLEN >= INET_ADDRSTRLEN);
   ASSERT(reinterpret_cast<Handle*>(fd)->is_socket());
   SocketHandle* socket_handle = reinterpret_cast<SocketHandle*>(fd);
   struct sockaddr_in socket_address;
   socklen_t size = sizeof(socket_address);
   if (getpeername(socket_handle->socket(),
                   reinterpret_cast<struct sockaddr *>(&socket_address),
                   &size)) {
     fprintf(stderr, "Error getpeername: %s\n", strerror(errno));
     return false;
   }
@@ skipping 174 matching lines @@
   if (status == SOCKET_ERROR) {
     DWORD rc = WSAGetLastError();
     closesocket(s);
     SetLastError(rc);
     return -1;
   }
 
   ListenSocket* listen_socket = new ListenSocket(s);
   return reinterpret_cast<intptr_t>(listen_socket);
 }