Move server socket functionality from TCPServerSocket into TCPSocket.

net/socket/tcp_socket.h

+// Copyright (c) 2013 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.
+
+#ifndef NET_SOCKET_TCP_SOCKET_H_
+#define NET_SOCKET_TCP_SOCKET_H_
+
+#include "build/build_config.h"
+
+#if defined(OS_WIN)
+#include "net/socket/tcp_socket_win.h"
+#elif defined(OS_POSIX)
+#include "net/socket/tcp_socket_libevent.h"
+#endif
+
+namespace net {
+
+// TCPSocket provides a platform-indenpendent interface for TCP sockets.
+//
+// It is recommended to use TCPClientSocket/TCPServerSocket instead of this
+// class, unless a clear separation of client and server socket functionality is
+// not suitable for your use case (e.g., a socket needs to be created and bound
+// before you know whether it is a client or server socket).
+#if defined(OS_WIN)
+typedef TCPSocketWin TCPSocket;
+#elif defined(OS_POSIX)
+typedef TCPSocketLibevent TCPSocket;
+#endif
+
+}  // namespace net
+
+#endif  // NET_SOCKET_TCP_SOCKET_H_