[NaCl SDK] Support non blocking TCP/UDP

native_client_sdk/src/libraries/nacl_io/mount_socket.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_MOUNT_SOCKET_H_
-#define LIBRARIES_NACL_IO_MOUNT_SOCKET_H_
-
-#include "nacl_io/ossocket.h"
-#ifdef PROVIDES_SOCKET_API
-
-#include "nacl_io/mount.h"
-
-namespace nacl_io {
-
-class MountSocket : public Mount {
- protected:
-  MountSocket();
-
- private:
-  virtual Error Access(const Path& path, int a_mode);
-  virtual Error Open(const Path& path,
-                     int o_flags,
-                     ScopedMountNode* out_node);
-  virtual Error Unlink(const Path& path);
-  virtual Error Mkdir(const Path& path, int permissions);
-  virtual Error Rmdir(const Path& path);
-  virtual Error Remove(const Path& path);
-
- private:
-  friend class KernelProxy;
-  DISALLOW_COPY_AND_ASSIGN(MountSocket);
-};
-
-}  // namespace nacl_io
-
-#endif  // PROVIDES_SOCKET_API
-#endif  // LIBRARIES_NACL_IO_MOUNT_SOCKET_H_