In PeerConnectionTestWrapper, put audio input on a separate thread.

talk/app/webrtc/peerconnection_unittest.cc

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 500 matching lines @@
         signaling_message_receiver_(NULL) {
   }
   bool Init(const MediaConstraintsInterface* constraints,
             const PeerConnectionFactory::Options* options) {
     EXPECT_TRUE(!peer_connection_);
     EXPECT_TRUE(!peer_connection_factory_);
     allocator_factory_ = webrtc::FakePortAllocatorFactory::Create();
     if (!allocator_factory_) {
       return false;
     }
-    fake_audio_capture_module_ = FakeAudioCaptureModule::Create(
-        rtc::Thread::Current());
+    fake_audio_capture_module_ = FakeAudioCaptureModule::Create();
 
     if (fake_audio_capture_module_ == NULL) {
       return false;
     }
     fake_video_decoder_factory_ = new FakeWebRtcVideoDecoderFactory();
     fake_video_encoder_factory_ = new FakeWebRtcVideoEncoderFactory();
     peer_connection_factory_ = webrtc::CreatePeerConnectionFactory(
         rtc::Thread::Current(), rtc::Thread::Current(),
         fake_audio_capture_module_, fake_video_encoder_factory_,
         fake_video_decoder_factory_);
@@ skipping 1088 matching lines @@
 // TODO(holmer): Disabled due to sometimes crashing on buildbots.
 // See issue webrtc/2378.
 TEST_F(JsepPeerConnectionP2PTestClient,
        DISABLED_LocalP2PTestWithVideoDecoderFactory) {
   ASSERT_TRUE(CreateTestClients());
   EnableVideoDecoderFactory();
   LocalP2PTest();
 }
 
 #endif // if !defined(THREAD_SANITIZER)