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

native_client_sdk/src/libraries/nacl_io/event_emitter_tty.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_TTY_H_
 #define LIBRARIES_NACL_IO_EVENT_EMITTER_TTY_H_
 
 #include <poll.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ skipping 10 matching lines @@
 class EventEmitterTTY;
 typedef sdk_util::ScopedRef<EventEmitterTTY> ScopedEventEmitterTTY;
 
 class EventEmitterTTY : public EventEmitterStream {
  public:
   explicit EventEmitterTTY(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 FIFONull* out_fifo() { return &null_; }
 
  private:
   FIFOChar fifo_;
   FIFONull null_;
   DISALLOW_COPY_AND_ASSIGN(EventEmitterTTY);
 };
 
 }  // namespace nacl_io
 
 #endif  // LIBRARIES_NACL_IO_EVENT_EMITTER_PIPE_H_