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

net/curvecp/packetizer.h

Index: net/curvecp/packetizer.h
diff --git a/net/curvecp/packetizer.h b/net/curvecp/packetizer.h
index 14b526a1ed7a063bc0d6306ace60a8050208dc9b..c366095a041fd8fe01fd7011955a9666ca37643d 100644
--- a/net/curvecp/packetizer.h
+++ b/net/curvecp/packetizer.h
@@ -34,7 +34,7 @@ class Packetizer {
   virtual int SendMessage(ConnectionKey key,
                           const char* data,
                           size_t length,
-                          OldCompletionCallback* callback) = 0;
+                          const CompletionCallback& callback) = 0;
 
   // Close an existing connection.
   virtual void Close(ConnectionKey key) = 0;