libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_postproc.c

 /*
  *  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 348 matching lines @@
   state->last_noise = a;
 }
 
 void vp9_plane_add_noise_c(uint8_t *start, char *noise,
                            char blackclamp[16],
                            char whiteclamp[16],
                            char bothclamp[16],
                            unsigned int width, unsigned int height, int pitch) {
   unsigned int i, j;
 
+  // TODO(jbb): why does simd code use both but c doesn't,  normalize and
+  // fix..
+  (void) bothclamp;
   for (i = 0; i < height; i++) {
     uint8_t *pos = start + i * pitch;
     char  *ref = (char *)(noise + (rand() & 0xff));  // NOLINT
 
     for (j = 0; j < width; j++) {
       if (pos[j] < blackclamp[0])
         pos[j] = blackclamp[0];
 
       if (pos[j] > 255 + whiteclamp[0])
         pos[j] = 255 + whiteclamp[0];
@@ skipping 53 matching lines @@
 
   /* handle problem with extending borders */
   dest->y_width = cm->width;
   dest->y_height = cm->height;
   dest->uv_width = dest->y_width >> cm->subsampling_x;
   dest->uv_height = dest->y_height >> cm->subsampling_y;
 
   return 0;
 }
 #endif