libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_pickmode.h

 /*
  *  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.
  */
 
 #ifndef VP9_ENCODER_VP9_PICKMODE_H_
 #define VP9_ENCODER_VP9_PICKMODE_H_
 
 #include "vp9/encoder/vp9_encoder.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 void vp9_pick_intra_mode(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *rd_cost,
                          BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx);
 
 void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
                          TileDataEnc *tile_data,
                          int mi_row, int mi_col, RD_COST *rd_cost,
                          BLOCK_SIZE bsize,
                          PICK_MODE_CONTEXT *ctx);
 
+void vp9_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x,
+                                TileDataEnc *tile_data,
+                                int mi_row, int mi_col, RD_COST *rd_cost,
+                                BLOCK_SIZE bsize,
+                                PICK_MODE_CONTEXT *ctx);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // VP9_ENCODER_VP9_PICKMODE_H_