Convert channel counts to size_t.

webrtc/modules/rtp_rtcp/source/mock/mock_rtp_payload_strategy.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.
  */
 
 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_MOCK_MOCK_RTP_PAYLOAD_STRATEGY_H_
 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_MOCK_MOCK_RTP_PAYLOAD_STRATEGY_H_
 
 #include "testing/gmock/include/gmock/gmock.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_payload_registry.h"
 
 namespace webrtc {
 
 class MockRTPPayloadStrategy : public RTPPayloadStrategy {
  public:
   MOCK_CONST_METHOD0(CodecsMustBeUnique,
       bool());
   MOCK_CONST_METHOD4(PayloadIsCompatible,
                      bool(const RtpUtility::Payload& payload,
                           const uint32_t frequency,
-                          const uint8_t channels,
+                          const size_t channels,
                           const uint32_t rate));
   MOCK_CONST_METHOD2(UpdatePayloadRate,
                      void(RtpUtility::Payload* payload, const uint32_t rate));
   MOCK_CONST_METHOD1(GetPayloadTypeFrequency,
                      int(const RtpUtility::Payload& payload));
   MOCK_CONST_METHOD5(
       CreatePayloadType,
       RtpUtility::Payload*(const char payloadName[RTP_PAYLOAD_NAME_SIZE],
                            const int8_t payloadType,
                            const uint32_t frequency,
-                           const uint8_t channels,
+                           const size_t channels,
                            const uint32_t rate));
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_MOCK_MOCK_RTP_PAYLOAD_STRATEGY_H_