libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_block.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 100 matching lines @@
   int quant_fp;
 
   // skip forward transform and quantization
   uint8_t skip_txfm[MAX_MB_PLANE << 2];
 
   int64_t bsse[MAX_MB_PLANE << 2];
 
   // Used to store sub partition's choices.
   MV pred_mv[MAX_REF_FRAMES];
 
+  // Strong color activity detection. Used in RTC coding mode to enhance
+  // the visual quality at the boundary of moving color objects.
+  uint8_t color_sensitivity[2];
+
   void (*fwd_txm4x4)(const int16_t *input, tran_low_t *output, int stride);
   void (*itxm_add)(const tran_low_t *input, uint8_t *dest, int stride, int eob);
 #if CONFIG_VP9_HIGHBITDEPTH
   void (*highbd_itxm_add)(const tran_low_t *input, uint8_t *dest, int stride,
                           int eob, int bd);
 #endif
 };
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_ENCODER_VP9_BLOCK_H_