Convert some more things to size_t.

webrtc/modules/audio_coding/codecs/ilbc/nearest_neighbor.h

 /*
  *  Copyright (c) 2011 The WebRTC 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.
  */
 
 /******************************************************************
 
  iLBC Speech Coder ANSI-C Source Code
 
  WebRtcIlbcfix_NearestNeighbor.h
 
 ******************************************************************/
 
 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_NEAREST_NEIGHBOR_H_
 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_NEAREST_NEIGHBOR_H_
 
 #include "defines.h"
 
 /*----------------------------------------------------------------*
  * Find index in array such that the array element with said
  * index is the element of said array closest to "value"
- * according to the squared-error criterion
  *---------------------------------------------------------------*/
 
 void WebRtcIlbcfix_NearestNeighbor(
-    int16_t *index, /* (o) index of array element closest to value */
-    int16_t *array, /* (i) data array (Q2) */
-    int16_t value, /* (i) value (Q2) */
-    size_t arlength /* (i) dimension of data array (==8) */
+    size_t* index, /* (o) index of array element closest to value */
+    const size_t* array, /* (i) data array (Q2) */
+    size_t value, /* (i) value (Q2) */
+    size_t arlength /* (i) dimension of data array (==ENH_NBLOCKS_TOT) */
                                    );
 
 #endif