[NOT FOR REVIEW] Convert channel counts to size_t.

webrtc/modules/audio_device/test/audio_device_test_api.cc

Index: webrtc/modules/audio_device/test/audio_device_test_api.cc
diff --git a/webrtc/modules/audio_device/test/audio_device_test_api.cc b/webrtc/modules/audio_device/test/audio_device_test_api.cc
index c09b88d5d7925ec44d42ba8e5f728c87037a2cde..88b377ea41e01f55ac8950e1a9f1e24936c0949d 100644
--- a/webrtc/modules/audio_device/test/audio_device_test_api.cc
+++ b/webrtc/modules/audio_device/test/audio_device_test_api.cc
@@ -85,7 +85,7 @@ class AudioTransportAPI: public AudioTransport {
   int32_t RecordedDataIsAvailable(const void* audioSamples,
                                   const size_t nSamples,
                                   const size_t nBytesPerSample,
-                                  const uint8_t nChannels,
+                                  const size_t nChannels,
                                   const uint32_t sampleRate,
                                   const uint32_t totalDelay,
                                   const int32_t clockSkew,
@@ -110,7 +110,7 @@ class AudioTransportAPI: public AudioTransport {
 
   int32_t NeedMorePlayData(const size_t nSamples,
                            const size_t nBytesPerSample,
-                           const uint8_t nChannels,
+                           const size_t nChannels,
                            const uint32_t sampleRate,
                            void* audioSamples,
                            size_t& nSamplesOut,
@@ -128,29 +128,6 @@ class AudioTransportAPI: public AudioTransport {
     return 0;
   }
 
-  int OnDataAvailable(const int voe_channels[],
-                      int number_of_voe_channels,
-                      const int16_t* audio_data,
-                      int sample_rate,
-                      int number_of_channels,
-                      size_t number_of_frames,
-                      int audio_delay_milliseconds,
-                      int current_volume,
-                      bool key_pressed,
-                      bool need_audio_processing) override {
-    return 0;
-  }
-
-  void PushCaptureData(int voe_channel, const void* audio_data,
-                       int bits_per_sample, int sample_rate,
-                       int number_of_channels,
-                       size_t number_of_frames) override {}
-
-  void PullRenderData(int bits_per_sample, int sample_rate,
-                      int number_of_channels, size_t number_of_frames,
-                      void* audio_data,
-                      int64_t* elapsed_time_ms,
-                      int64_t* ntp_time_ms) override {}
  private:
   uint32_t rec_count_;
   uint32_t play_count_;