Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/ilbc/window32_w32.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_Window32W32.c
 
 ******************************************************************/
 
 #include "defines.h"
 
 /*----------------------------------------------------------------*
  *  window multiplication
  *---------------------------------------------------------------*/
 
 void WebRtcIlbcfix_Window32W32(
     int32_t *z,    /* Output */
     int32_t *x,    /* Input (same domain as Output)*/
     const int32_t  *y,  /* Q31 Window */
-    int16_t N     /* length to process */
+    size_t N     /* length to process */
                                ) {
-  int16_t i;
+  size_t i;
   int16_t x_low, x_hi, y_low, y_hi;
   int16_t left_shifts;
   int32_t temp;
 
   left_shifts = (int16_t)WebRtcSpl_NormW32(x[0]);
   WebRtcSpl_VectorBitShiftW32(x, N, x, (int16_t)(-left_shifts));
 
 
   /* The double precision numbers use a special representation:
    * w32 = hi<<16 + lo<<1
@@ skipping 11 matching lines @@
     /* Calculate z by a 32 bit multiplication using both low and high from x and y */
     temp = ((x_hi * y_hi) << 1) + ((x_hi * y_low) >> 14);
 
     z[i] = temp + ((x_low * y_hi) >> 14);
   }
 
   WebRtcSpl_VectorBitShiftW32(z, N, z, left_shifts);
 
   return;
 }