libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_blockd.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 106 matching lines @@
 static INLINE int mi_width_log2(BLOCK_SIZE sb_type) {
   return mi_width_log2_lookup[sb_type];
 }
 
 // This structure now relates to 8x8 block regions.
 typedef struct {
   // Common for both INTER and INTRA blocks
   BLOCK_SIZE sb_type;
   PREDICTION_MODE mode;
   TX_SIZE tx_size;
-  uint8_t skip;
-  uint8_t segment_id;
-  uint8_t seg_id_predicted;  // valid only when temporal_update is enabled
+  int8_t skip;
+  int8_t segment_id;
+  int8_t seg_id_predicted;  // valid only when temporal_update is enabled
 
   // Only for INTRA blocks
   PREDICTION_MODE uv_mode;
 
   // Only for INTER blocks
   MV_REFERENCE_FRAME ref_frame[2];
   int_mv mv[2];
   int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
   uint8_t mode_context[MAX_REF_FRAMES];
   INTERP_FILTER interp_filter;
@@ skipping 172 matching lines @@
 
 void vp9_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
                       BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob,
                       int aoff, int loff);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_COMMON_VP9_BLOCKD_H_