Match existing type usage better.

webrtc/modules/audio_coding/codecs/cng/webrtc_cng.c

 /*
  *  Copyright (c) 2012 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 352 matching lines @@
     index = 0;
     for (i = 1; i < 93; i++) {
       /* Always round downwards. */
       if ((inst->enc_Energy - WebRtcCng_kDbov[i]) > 0) {
         index = i;
         break;
       }
     }
     if ((i == 93) && (index == 0))
       index = 94;
-    SIDdata[0] = index;
+    SIDdata[0] = (uint8_t)index;
 
     /* Quantize coefficients with tweak for WebRtc implementation of RFC3389. */
     if (inst->enc_nrOfCoefs == WEBRTC_CNG_MAX_LPC_ORDER) {
       for (i = 0; i < inst->enc_nrOfCoefs; i++) {
         /* Q15 to Q7 with rounding. */
         SIDdata[i + 1] = ((inst->enc_reflCoefs[i] + 128) >> 8);
       }
     } else {
       for (i = 0; i < inst->enc_nrOfCoefs; i++) {
         /* Q15 to Q7 with rounding. */
@@ skipping 209 matching lines @@
   /* Typecast pointer to real structure. */
   WebRtcCngEncoder* inst = (WebRtcCngEncoder*) cng_inst;
   return inst->errorcode;
 }
 
 int16_t WebRtcCng_GetErrorCodeDec(CNG_dec_inst* cng_inst) {
   /* Typecast pointer to real structure. */
   WebRtcCngDecoder* inst = (WebRtcCngDecoder*) cng_inst;
   return inst->errorcode;
 }