[NaCl SDK] nacl_io: Add support for non-blocking connect/accept

native_client_sdk/src/libraries/nacl_io/event_emitter_udp.h

 // Copyright (c) 2013 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 LIBRARIES_NACL_IO_EVENT_EMITTER_UDP_H_
 #define LIBRARIES_NACL_IO_EVENT_EMITTER_UDP_H_
 
 #include "nacl_io/event_emitter_stream.h"
 #include "nacl_io/fifo_packet.h"
 
 #include "sdk_util/macros.h"
 #include "sdk_util/scoped_ref.h"
 
 namespace nacl_io {
 
 class EventEmitterUDP;
 typedef sdk_util::ScopedRef<EventEmitterUDP> ScopedEventEmitterUDP;
 
 class EventEmitterUDP : public EventEmitterStream {
  public:
   EventEmitterUDP(size_t rsize, size_t wsize);
 
   // Takes or gives away ownership of the packet.
   Packet* ReadRXPacket_Locked();
   void WriteRXPacket_Locked(Packet* packet);
 
   Packet* ReadTXPacket_Locked();
   void WriteTXPacket_Locked(Packet* packet);
 
+protected:
   virtual FIFOPacket* in_fifo() { return &in_fifo_; }
   virtual FIFOPacket* out_fifo() { return &out_fifo_; }
 
-protected:
+private:
   FIFOPacket in_fifo_;
   FIFOPacket out_fifo_;
   DISALLOW_COPY_AND_ASSIGN(EventEmitterUDP);
 };
 
 }  // namespace nacl_io
 
 #endif  // LIBRARIES_NACL_IO_EVENT_EMITTER_UDP_H_