Bind before sandbox lockdown on Windows.

net/udp/udp_socket_libevent.h

 // Copyright (c) 2012 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_UDP_SOCKET_LIBEVENT_H_
 #define NET_UDP_UDP_SOCKET_LIBEVENT_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 145 matching lines @@
   // will not RECEIVE the loopback packets; while on Unix-like systems, the
   // applications with loopback off will not SEND the loopback packets to
   // other applications on the same host. See MSDN: http://goo.gl/6vqbj
   int SetMulticastLoopbackMode(bool loopback);
 
   // Set the differentiated services flags on outgoing packets. May not
   // do anything on some platforms.
   // Return a network error code.
   int SetDiffServCodePoint(DiffServCodePoint dscp);
 
+  // Detach from thread used to check for thread-safety.
+  void DetachFromThread();
+
  private:
   enum SocketOptions {
     SOCKET_OPTION_REUSE_ADDRESS  = 1 << 0,
     SOCKET_OPTION_BROADCAST      = 1 << 1,
     SOCKET_OPTION_MULTICAST_LOOP = 1 << 2
   };
 
   class ReadWatcher : public base::MessageLoopForIO::Watcher {
    public:
     explicit ReadWatcher(UDPSocketLibevent* socket) : socket_(socket) {}
@@ skipping 112 matching lines @@
   CompletionCallback write_callback_;
 
   BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(UDPSocketLibevent);
 };
 
 }  // namespace net
 
 #endif  // NET_UDP_UDP_SOCKET_LIBEVENT_H_