Move socket related files from net/base to net/socket.

net/base/client_socket.cc

-// Copyright (c) 2009 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/client_socket.h"
-
-#include "base/logging.h"
-#include "net/base/net_errors.h"
-
-namespace net {
-
-#if defined(OS_LINUX)
-// Identical to posix system call getpeername().
-// Needed by ssl_client_socket_nss.
-int ClientSocket::GetPeerName(struct sockaddr *name, socklen_t *namelen) {
-  // Default implementation just permits some unit tests to link.
-  NOTREACHED();
-  return ERR_UNEXPECTED;
-}
-#endif
-
-}  // namespace net