libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_encodeintra.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.
- */
-
-#include "./vpx_config.h"
-#include "./vp9_rtcd.h"
-#include "vp9/encoder/vp9_quantize.h"
-#include "vp9/common/vp9_reconintra.h"
-#include "vp9/encoder/vp9_encodemb.h"
-#include "vp9/encoder/vp9_encodeintra.h"
-
-int vp9_encode_intra(MACROBLOCK *x, int use_16x16_pred) {
-  MB_MODE_INFO * mbmi = &x->e_mbd.mi_8x8[0]->mbmi;
-  x->skip_encode = 0;
-  mbmi->mode = DC_PRED;
-  mbmi->ref_frame[0] = INTRA_FRAME;
-  mbmi->tx_size = use_16x16_pred ? (mbmi->sb_type >= BLOCK_16X16 ? TX_16X16
-                                                                 : TX_8X8)
-                                   : TX_4X4;
-  vp9_encode_intra_block_y(x, mbmi->sb_type);
-  return vp9_get_mb_ss(x->plane[0].src_diff);
-}