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

net/udp/udp_server_socket.cc

Index: net/udp/udp_server_socket.cc
diff --git a/net/udp/udp_server_socket.cc b/net/udp/udp_server_socket.cc
index 79584637405a2623a03a2b7c1103024517c7dc74..b4395d237109d83e647d3dea2571b814ebac5a73 100644
--- a/net/udp/udp_server_socket.cc
+++ b/net/udp/udp_server_socket.cc
@@ -26,14 +26,14 @@ int UDPServerSocket::Listen(const IPEndPoint& address) {
 int UDPServerSocket::RecvFrom(IOBuffer* buf,
                               int buf_len,
                               IPEndPoint* address,
-                              OldCompletionCallback* callback) {
+                              const CompletionCallback& callback) {
   return socket_.RecvFrom(buf, buf_len, address, callback);
 }
 
 int UDPServerSocket::SendTo(IOBuffer* buf,
                             int buf_len,
                             const IPEndPoint& address,
-                            OldCompletionCallback* callback) {
+                            const CompletionCallback& callback) {
   return socket_.SendTo(buf, buf_len, address, callback);
 }