Make the mojom files under //mojo/services/network/interfaces basically the same as the ones in the…

mojo/services/network/interfaces/tcp_server_socket.mojom

 // Copyright 2014 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.
 
+[DartPackage="mojo_services"]
 module mojo;
 
+import "mojo/public/interfaces/network/network_error.mojom";
 import "network/interfaces/net_address.mojom";
 import "network/interfaces/tcp_connected_socket.mojom";
-import "third_party/mojo/src/mojo/public/interfaces/network/network_error.mojom";
 
 // Represents a TCP server socket listening for incoming requests.
 interface TCPServerSocket {
   // Waits for an incoming connection request and hooks up a TCPConnectedSocket
   // for connecting with the remote host. Only one Accept call can be pending
   // at a time.
   //
   // Once a connection has been established (indicated by a successful
   // callback), the TCPConnectedSocket may outlive the TCPServerSocket that
   // created it.
   //
   // On success, the address of the remote host will be provided.
   Accept(handle<data_pipe_consumer> send_stream,
          handle<data_pipe_producer> receive_stream,
          TCPConnectedSocket& client_socket)
       => (NetworkError result, NetAddress? remote_address);
 };