libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_blockd.c

 /*
  *  Copyright (c) 2014 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 74 matching lines @@
       visit(plane, i, plane_bsize, tx_size, arg);
   }
 }
 
 void vp9_foreach_transformed_block(const MACROBLOCKD* const xd,
                                    BLOCK_SIZE bsize,
                                    foreach_transformed_block_visitor visit,
                                    void *arg) {
   int plane;
 
-  for (plane = 0; plane < MAX_MB_PLANE; plane++)
+  for (plane = 0; plane < MAX_MB_PLANE; ++plane)
     vp9_foreach_transformed_block_in_plane(xd, bsize, plane, visit, arg);
 }
 
 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) {
   ENTROPY_CONTEXT *const a = pd->above_context + aoff;
   ENTROPY_CONTEXT *const l = pd->left_context + loff;
   const int tx_size_in_blocks = 1 << tx_size;
 
@@ skipping 34 matching lines @@
 
 void vp9_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y) {
   int i;
 
   for (i = 0; i < MAX_MB_PLANE; i++) {
     xd->plane[i].plane_type = i ? PLANE_TYPE_UV : PLANE_TYPE_Y;
     xd->plane[i].subsampling_x = i ? ss_x : 0;
     xd->plane[i].subsampling_y = i ? ss_y : 0;
   }
 }