Use MediaTransportInterface, for audio streams.

Bug: webrtc:9719
Change-Id: I6d3db66b781173b207de51d84193fbd34a7f3239
Reviewed-on: https://webrtc-review.googlesource.com/c/104642
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Anton Sukhanov <sukhanov@webrtc.org>
Reviewed-by: Peter Slatala <psla@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25385}
diff --git a/audio/BUILD.gn b/audio/BUILD.gn
index 35e10e6..d569d27 100644
--- a/audio/BUILD.gn
+++ b/audio/BUILD.gn
@@ -128,24 +128,34 @@
       "mock_voe_channel_proxy.h",
       "remix_resample_unittest.cc",
       "test/audio_stats_test.cc",
+      "test/media_transport_test.cc",
       "time_interval_unittest.cc",
       "transport_feedback_packet_loss_tracker_unittest.cc",
     ]
     deps = [
       ":audio",
       ":audio_end_to_end_test",
+      "../api:loopback_media_transport",
       "../api:mock_audio_mixer",
       "../api:mock_frame_decryptor",
       "../api:mock_frame_encryptor",
       "../api/audio:audio_frame_api",
+      "../api/audio_codecs:audio_codecs_api",
+      "../api/audio_codecs/opus:audio_decoder_opus",
+      "../api/audio_codecs/opus:audio_encoder_opus",
       "../api/units:time_delta",
+      "../call:mock_bitrate_allocator",
       "../call:mock_call_interfaces",
       "../call:mock_rtp_interfaces",
       "../call:rtp_interfaces",
       "../call:rtp_receiver",
       "../common_audio",
       "../logging:mocks",
+      "../logging:rtc_event_log_api",
       "../modules/audio_device:mock_audio_device",
+
+      # For TestAudioDeviceModule
+      "../modules/audio_device:audio_device_impl",
       "../modules/audio_mixer:audio_mixer_impl",
       "../modules/audio_processing:audio_processing_statistics",
       "../modules/audio_processing:mocks",
@@ -153,6 +163,7 @@
       "../modules/pacing:pacing",
       "../modules/rtp_rtcp:mock_rtp_rtcp",
       "../modules/rtp_rtcp:rtp_rtcp_format",
+      "../modules/utility",
       "../rtc_base:checks",
       "../rtc_base:rtc_base_approved",
       "../rtc_base:rtc_base_tests_utils",