Add bind(), recvFrom(), sendTo() for UDP socket.

net/udp/udp_socket_libevent.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_UDP_SOCKET_LIBEVENT_H_
 #define NET_UDP_UDP_SOCKET_LIBEVENT_H_
 #pragma once
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/address_list_net_log_param.h"
 #include "net/base/completion_callback.h"
+#include "net/base/net_export.h"
 #include "net/base/rand_callback.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_log.h"
 #include "net/udp/datagram_socket.h"
 
 namespace net {
 
-class UDPSocketLibevent : public base::NonThreadSafe {
+class NET_EXPORT UDPSocketLibevent : public base::NonThreadSafe {
  public:
   UDPSocketLibevent(DatagramSocket::BindType bind_type,
                     const RandIntCallback& rand_int_cb,
                     net::NetLog* net_log,
                     const net::NetLog::Source& source);
   virtual ~UDPSocketLibevent();
 
   // Connect the socket to connect with a certain |address|.
   // Returns a net error code.
   int Connect(const IPEndPoint& address);
@@ skipping 181 matching lines @@
   CompletionCallback write_callback_;
 
   BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(UDPSocketLibevent);
 };
 
 }  // namespace net
 
 #endif  // NET_UDP_UDP_SOCKET_LIBEVENT_H_