libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_mvref_common.h

 /*
  *  Copyright (c) 2012 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.
  */
 #ifndef VP9_COMMON_VP9_MVREF_COMMON_H_
@@ skipping 13 matching lines @@
 // TODO(jingning): this mv clamping function should be block size dependent.
 static INLINE void clamp_mv2(MV *mv, const MACROBLOCKD *xd) {
   clamp_mv(mv, xd->mb_to_left_edge - LEFT_TOP_MARGIN,
                xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN,
                xd->mb_to_top_edge - LEFT_TOP_MARGIN,
                xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN);
 }
 
 void vp9_find_mv_refs(const VP9_COMMON *cm, const MACROBLOCKD *xd,
                       const TileInfo *const tile,
-                      MODE_INFO *mi, const MODE_INFO *prev_mi,
-                      MV_REFERENCE_FRAME ref_frame,
-                      int_mv *mv_ref_list,
-                      int mi_row, int mi_col);
+                      MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
+                      int_mv *mv_ref_list, int mi_row, int mi_col);
 
 // check a list of motion vectors by sad score using a number rows of pixels
 // above and a number cols of pixels in the left to select the one with best
 // score to use as ref motion vector
 void vp9_find_best_ref_mvs(MACROBLOCKD *xd, int allow_hp,
                            int_mv *mvlist, int_mv *nearest, int_mv *near);
 
 void vp9_append_sub8x8_mvs_for_idx(VP9_COMMON *cm, MACROBLOCKD *xd,
                                    const TileInfo *const tile,
                                    int block, int ref, int mi_row, int mi_col,
                                    int_mv *nearest, int_mv *near);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_COMMON_VP9_MVREF_COMMON_H_