libvpx: Pull from upstream

source/libvpx/video_reader.c

 /*
  *  Copyright (c) 2014 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 <stdlib.h>
 #include <string.h>
 
 #include "./ivfdec.h"
 #include "./video_reader.h"
 
+#include "vpx_ports/mem_ops.h"
+
 static const char *const kIVFSignature = "DKIF";
 
 struct VpxVideoReaderStruct {
   VpxVideoInfo info;
   FILE *file;
   uint8_t *buffer;
   size_t buffer_size;
   size_t frame_size;
 };
 
@@ skipping 45 matching lines @@
   if (size)
     *size = reader->frame_size;
 
   return reader->buffer;
 }
 
 const VpxVideoInfo *vpx_video_reader_get_info(VpxVideoReader *reader) {
   return &reader->info;
 }