tommi c45d6d9c85 Remove dependency on rtc::Thread and rtc_base from audio_mixer_unittests.
Instead, use a TaskQueue in the only test that required it.

BUG=none

Review-Url: https://codereview.webrtc.org/2975883002
Cr-Commit-Position: refs/heads/master@{#18969}
2017-07-11 13:17:10 +00:00
..
2016-11-16 19:11:38 +00:00