libvpx: Pull from upstream

source/libvpx/vp8/common/loopfilter.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 243 matching lines @@
 }
 
 void vp8_loop_filter_row_simple(VP8_COMMON *cm, MODE_INFO *mode_info_context,
                          int mb_row, int post_ystride, int post_uvstride,
                          unsigned char *y_ptr, unsigned char *u_ptr,
                          unsigned char *v_ptr)
 {
     int mb_col;
     int filter_level;
     loop_filter_info_n *lfi_n = &cm->lf_info;
+    (void)post_uvstride;
 
     for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
     {
         int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
                         mode_info_context->mbmi.mode != SPLITMV &&
                         mode_info_context->mbmi.mb_skip_coeff);
 
         const int mode_index = lfi_n->mode_lf_lut[mode_info_context->mbmi.mode];
         const int seg = mode_info_context->mbmi.segment_id;
         const int ref_frame = mode_info_context->mbmi.ref_frame;
@@ skipping 378 matching lines @@
             }
 
             y_ptr += 16;
             mode_info_context += 1;      /* step to next MB */
         }
 
         y_ptr += post->y_stride  * 16 - post->y_width;
         mode_info_context += 1;          /* Skip border mb */
     }
 }