Remove //net (except for Android test stuff) and sdch

net/udp/datagram_client_socket.h

-// 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.
-
-#ifndef NET_UDP_DATAGRAM_CLIENT_SOCKET_H_
-#define NET_UDP_DATAGRAM_CLIENT_SOCKET_H_
-
-#include "net/socket/socket.h"
-#include "net/udp/datagram_socket.h"
-
-namespace net {
-
-class IPEndPoint;
-
-class NET_EXPORT_PRIVATE DatagramClientSocket : public DatagramSocket,
-                                                public Socket {
- public:
-  ~DatagramClientSocket() override {}
-
-  // Initialize this socket as a client socket to server at |address|.
-  // Returns a network error code.
-  virtual int Connect(const IPEndPoint& address) = 0;
-};
-
-}  // namespace net
-
-#endif  // NET_UDP_DATAGRAM_CLIENT_SOCKET_H_