Migrate net/socket/socket.h, net/socket/stream_socket.h to base::Bind().

net/udp/datagram_server_socket.h

Index: net/udp/datagram_server_socket.h
diff --git a/net/udp/datagram_server_socket.h b/net/udp/datagram_server_socket.h
index cd20191a0c04885d58b310d388bc224ff9d3511e..c83481c911308632b117f2d95f21f26a0c3e162c 100644
--- a/net/udp/datagram_server_socket.h
+++ b/net/udp/datagram_server_socket.h
@@ -39,7 +39,7 @@ class NET_EXPORT DatagramServerSocket : public DatagramSocket {
   virtual int RecvFrom(IOBuffer* buf,
                        int buf_len,
                        IPEndPoint* address,
-                       OldCompletionCallback* callback) = 0;
+                       const CompletionCallback& callback) = 0;
 
   // Send to a socket with a particular destination.
   // |buf| is the buffer to send
@@ -53,7 +53,7 @@ class NET_EXPORT DatagramServerSocket : public DatagramSocket {
   virtual int SendTo(IOBuffer* buf,
                      int buf_len,
                      const IPEndPoint& address,
-                     OldCompletionCallback* callback) = 0;
+                     const CompletionCallback& callback) = 0;
 
   // Set the receive buffer size (in bytes) for the socket.
   virtual bool SetReceiveBufferSize(int32 size) = 0;