libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_enums.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 22 matching lines @@
 //                 sampling.
 // 111: Undefined profile.
 typedef enum BITSTREAM_PROFILE {
   PROFILE_0,
   PROFILE_1,
   PROFILE_2,
   PROFILE_3,
   MAX_PROFILES
 } BITSTREAM_PROFILE;
 
-typedef enum BIT_DEPTH {
-  BITS_8,
-  BITS_10,
-  BITS_12
-} BIT_DEPTH;
-
 typedef enum BLOCK_SIZE {
   BLOCK_4X4,
   BLOCK_4X8,
   BLOCK_8X4,
   BLOCK_8X8,
   BLOCK_8X16,
   BLOCK_16X8,
   BLOCK_16X16,
   BLOCK_16X32,
   BLOCK_32X16,
@@ skipping 59 matching lines @@
   VP9_LAST_FLAG = 1 << 0,
   VP9_GOLD_FLAG = 1 << 1,
   VP9_ALT_FLAG = 1 << 2,
 } VP9_REFFRAME;
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_COMMON_VP9_ENUMS_H_