[NOT FOR REVIEW] Convert channel counts to size_t.

webrtc/common_types.h

 /*
  *  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 286 matching lines @@
 // ==================================================================
 // Voice specific types
 // ==================================================================
 
 // Each codec supported can be described by this structure.
 struct CodecInst {
   int pltype;
   char plname[RTP_PAYLOAD_NAME_SIZE];
   int plfreq;
   int pacsize;
-  int channels;
+  size_t channels;
   int rate;  // bits/sec unlike {start,min,max}Bitrate elsewhere in this file!
 
   bool operator==(const CodecInst& other) const {
     return pltype == other.pltype &&
            (STR_CASE_CMP(plname, other.plname) == 0) &&
            plfreq == other.plfreq &&
            pacsize == other.pacsize &&
            channels == other.channels &&
            rate == other.rate;
   }
@@ skipping 579 matching lines @@
 class StreamDataCountersCallback {
  public:
   virtual ~StreamDataCountersCallback() {}
 
   virtual void DataCountersUpdated(const StreamDataCounters& counters,
                                    uint32_t ssrc) = 0;
 };
 }  // namespace webrtc
 
 #endif  // WEBRTC_COMMON_TYPES_H_