Use SingleThreadedTaskQueue in DirectTransport

webrtc/audio/test/audio_bwe_integration_test.h

 /*
  *  Copyright (c) 2017 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_AUDIO_TEST_AUDIO_BWE_INTEGRATION_TEST_H_
 #define WEBRTC_AUDIO_TEST_AUDIO_BWE_INTEGRATION_TEST_H_
 
 #include <memory>
 #include <string>
 
 #include "webrtc/test/call_test.h"
 #include "webrtc/test/fake_audio_device.h"
+#include "webrtc/test/single_threaded_task_queue.h"
 
 namespace webrtc {
 namespace test {
 
 class AudioBweTest : public test::EndToEndTest {
  public:
   AudioBweTest();
 
  protected:
   virtual std::string AudioInputFile() = 0;
 
   virtual FakeNetworkPipe::Config GetNetworkPipeConfig() = 0;
 
   size_t GetNumVideoStreams() const override;
   size_t GetNumAudioStreams() const override;
   size_t GetNumFlexfecStreams() const override;
 
   std::unique_ptr<test::FakeAudioDevice::Capturer> CreateCapturer() override;
 
   void OnFakeAudioDevicesCreated(
       test::FakeAudioDevice* send_audio_device,
       test::FakeAudioDevice* recv_audio_device) override;
 
-  test::PacketTransport* CreateSendTransport(Call* sender_call) override;
-  test::PacketTransport* CreateReceiveTransport() override;
+  test::PacketTransport* CreateSendTransport(
+      SingleThreadedTaskQueueForTesting* task_queue,
+      Call* sender_call) override;
+  test::PacketTransport* CreateReceiveTransport(
+      SingleThreadedTaskQueueForTesting* task_queue) override;
 
   void PerformTest() override;
 
  private:
   test::FakeAudioDevice* send_audio_device_;
 };
 
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_AUDIO_TEST_AUDIO_BWE_INTEGRATION_TEST_H_