Update audio code to use size_t more correctly,

webrtc/common_audio/signal_processing/get_hanning_window.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.
  */
 
@@ skipping 35 matching lines @@
 14055,  14125,  14194,  14262,  14329,  14395,  14460,  14525,
 14588,  14650,  14711,  14772,  14831,  14890,  14947,  15003,
 15059,  15113,  15166,  15219,  15270,  15320,  15369,  15417,
 15464,  15509,  15554,  15597,  15640,  15681,  15721,  15760,
 15798,  15835,  15871,  15905,  15938,  15971,  16001,  16031,
 16060,  16087,  16113,  16138,  16162,  16185,  16206,  16227,
 16246,  16263,  16280,  16295,  16309,  16322,  16334,  16345,
 16354,  16362,  16369,  16374,  16378,  16382,  16383,  16384
 };
 
-void WebRtcSpl_GetHanningWindow(int16_t *v, int16_t size)
+void WebRtcSpl_GetHanningWindow(int16_t *v, size_t size)
 {
-    int jj;
+    size_t jj;
     int16_t *vptr1;
 
     int32_t index;
     int32_t factor = ((int32_t)0x40000000);
 
-    factor = WebRtcSpl_DivW32W16(factor, size);
+    factor = WebRtcSpl_DivW32W16(factor, (int16_t)size);
     if (size < 513)
         index = (int32_t)-0x200000;
     else
         index = (int32_t)-0x100000;
     vptr1 = v;
 
     for (jj = 0; jj < size; jj++)
     {
         index += factor;
         (*vptr1++) = kHanningTable[index >> 22];
     }
 
 }