Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/ilbc/comp_corr.c

 /*
  *  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_CompCorr.c
 
 ******************************************************************/
 
 #include "defines.h"
 
 /*----------------------------------------------------------------*
  *  Compute cross correlation and pitch gain for pitch prediction
  *  of last subframe at given lag.
  *---------------------------------------------------------------*/
 
 void WebRtcIlbcfix_CompCorr(
     int32_t *corr, /* (o) cross correlation */
     int32_t *ener, /* (o) energy */
     int16_t *buffer, /* (i) signal buffer */
-    int16_t lag,  /* (i) pitch lag */
-    int16_t bLen, /* (i) length of buffer */
-    int16_t sRange, /* (i) correlation search length */
+    size_t lag,  /* (i) pitch lag */
+    size_t bLen, /* (i) length of buffer */
+    size_t sRange, /* (i) correlation search length */
     int16_t scale /* (i) number of rightshifts to use */
                             ){
   int16_t *w16ptr;
 
   w16ptr=&buffer[bLen-sRange-lag];
 
   /* Calculate correlation and energy */
   (*corr)=WebRtcSpl_DotProductWithScale(&buffer[bLen-sRange], w16ptr, sRange, scale);
   (*ener)=WebRtcSpl_DotProductWithScale(w16ptr, w16ptr, sRange, scale);
 
   /* For zero energy set the energy to 0 in order to avoid potential
      problems for coming divisions */
   if (*ener == 0) {
     *corr = 0;
     *ener = 1;
   }
 }