libvpx: Add VP9 decoder.

source/libvpx/tools_common.c

 /*
  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <stdio.h>
 #include "tools_common.h"
 #if defined(_WIN32) || defined(__OS2__)
 #include <io.h>
 #include <fcntl.h>
 
 #ifdef __OS2__
 #define _setmode    setmode
 #define _fileno     fileno
 #define _O_BINARY   O_BINARY
 #endif
 #endif
 
-FILE* set_binary_mode(FILE *stream)
-{
-    (void)stream;
+FILE *set_binary_mode(FILE *stream) {
+  (void)stream;
 #if defined(_WIN32) || defined(__OS2__)
-    _setmode(_fileno(stream), _O_BINARY);
+  _setmode(_fileno(stream), _O_BINARY);
 #endif
-    return stream;
+  return stream;
 }