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

native_client_sdk/src/libraries/nacl_io/event_emitter_pipe.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_PIPE_H_
 #define LIBRARIES_NACL_IO_EVENT_EMITTER_PIPE_H_
 
 #include <poll.h>
 #include <stdint.h>
 #include <stdlib.h>
 
 #include "nacl_io/event_emitter_stream.h"
 #include "nacl_io/fifo_char.h"
 
 #include "sdk_util/auto_lock.h"
 #include "sdk_util/macros.h"
 
 namespace nacl_io {
 
 class EventEmitterPipe;
 typedef sdk_util::ScopedRef<EventEmitterPipe> ScopedEventEmitterPipe;
 
 class EventEmitterPipe : public EventEmitterStream {
  public:
   EventEmitterPipe(size_t size);
 
   size_t Read_Locked(char* data, size_t len);
   size_t Write_Locked(const char* data, size_t len);
 
+ protected:
   virtual FIFOChar* in_fifo() { return &fifo_; }
   virtual FIFOChar* out_fifo() { return &fifo_; }
 
-private:
+ private:
   FIFOChar fifo_;
   DISALLOW_COPY_AND_ASSIGN(EventEmitterPipe);
 };
 
 }  // namespace nacl_io
 
 #endif  // LIBRARIES_NACL_IO_EVENT_EMITTER_PIPE_H_