libvpx: Pull from upstream

source/libvpx/vp9/decoder/vp9_reader.h

 /*
  *  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.
  */
 
@@ skipping 12 matching lines @@
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 typedef size_t BD_VALUE;
 
 #define BD_VALUE_SIZE ((int)sizeof(BD_VALUE) * CHAR_BIT)
 
 typedef struct {
+  // Be careful when reordering this struct, it may impact the cache negatively.
+  BD_VALUE value;
+  unsigned int range;
+  int count;
   const uint8_t *buffer_end;
   const uint8_t *buffer;
-  uint8_t clear_buffer[sizeof(BD_VALUE) + 1];
-  BD_VALUE value;
-  int count;
-  unsigned int range;
   vpx_decrypt_cb decrypt_cb;
   void *decrypt_state;
+  uint8_t clear_buffer[sizeof(BD_VALUE) + 1];
 } vp9_reader;
 
 int vp9_reader_init(vp9_reader *r,
                     const uint8_t *buffer,
                     size_t size,
                     vpx_decrypt_cb decrypt_cb,
                     void *decrypt_state);
 
 void vp9_reader_fill(vp9_reader *r);
 
@@ skipping 59 matching lines @@
     continue;
 
   return -i;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_DECODER_VP9_READER_H_