Adds a method to TCPServerSocket to adopt a socket.

net/socket/tcp_server_socket.cc

 // Copyright 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.
 
 #include "net/socket/tcp_server_socket.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "net/base/net_errors.h"
+#include "net/socket/socket_descriptor.h"
 #include "net/socket/tcp_client_socket.h"
 
 namespace net {
 
 TCPServerSocket::TCPServerSocket(NetLog* net_log, const NetLogSource& source)
     : socket_(nullptr, net_log, source), pending_accept_(false) {}
 
+int TCPServerSocket::AdoptSocket(SocketDescriptor socket) {
+  return socket_.AdoptUnconnectedSocket(socket);
+}
+
 TCPServerSocket::~TCPServerSocket() {
 }
 
 int TCPServerSocket::Listen(const IPEndPoint& address, int backlog) {
   int result = socket_.Open(address.GetFamily());
   if (result != OK)
     return result;
 
   result = socket_.SetDefaultOptionsForServer();
   if (result != OK) {
@@ skipping 70 matching lines @@
 void TCPServerSocket::OnAcceptCompleted(
     std::unique_ptr<StreamSocket>* output_accepted_socket,
     const CompletionCallback& forward_callback,
     int result) {
   result = ConvertAcceptedSocket(result, output_accepted_socket);
   pending_accept_ = false;
   forward_callback.Run(result);
 }
 
 }  // namespace net