Convert channel counts to size_t.

webrtc/modules/audio_coding/acm2/acm_codec_database.cc

 /*
  *  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 274 matching lines @@
 // Looks for a matching payload name, frequency, and channels in the
 // codec list. Need to check all three since some codecs have several codec
 // entries with different frequencies and/or channels.
 // Does not check other codec settings, such as payload type and packet size.
 // Returns the id of the codec, or -1 if no match is found.
 int ACMCodecDB::CodecId(const CodecInst& codec_inst) {
   return (CodecId(codec_inst.plname, codec_inst.plfreq,
                   codec_inst.channels));
 }
 
-int ACMCodecDB::CodecId(const char* payload_name, int frequency, int channels) {
+int ACMCodecDB::CodecId(const char* payload_name,
+                        int frequency,
+                        size_t channels) {
   for (const CodecInst& ci : RentACodec::Database()) {
     bool name_match = false;
     bool frequency_match = false;
     bool channels_match = false;
 
     // Payload name, sampling frequency and number of channels need to match.
     // NOTE! If |frequency| is -1, the frequency is not applicable, and is
     // always treated as true, like for RED.
     name_match = (STR_CASE_CMP(ci.plname, payload_name) == 0);
     frequency_match = (frequency == ci.plfreq) || (frequency == -1);
@@ skipping 16 matching lines @@
 }
 // Gets codec id number from database for the receiver.
 int ACMCodecDB::ReceiverCodecNumber(const CodecInst& codec_inst) {
   // Look for a matching codec in the database.
   return CodecId(codec_inst);
 }
 
 }  // namespace acm2
 
 }  // namespace webrtc