The set of tests is a copy of rtc_base/task_queue_unittests excluding tests
that verify rtc::NewClosure rather than task queue implementation itself.
Bug: webrtc:10191
Change-Id: I94e962ad63ff6510c43a97ef0cd4da7d08f25538
Reviewed-on: https://webrtc-review.googlesource.com/c/118445
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26369}
