- Also removes async invoker usage in favor of thread posting BUG= Review-Url: https://codereview.webrtc.org/1945563003 Cr-Commit-Position: refs/heads/master@{#12651}
BUG= Review URL: https://codereview.webrtc.org/1778793005 Cr-Commit-Position: refs/heads/master@{#11972}