NOPRESUBMIT=true BUG=webrtc:6398 Review-Url: https://codereview.webrtc.org/2358993004 Cr-Commit-Position: refs/heads/master@{#14425}
This will let us use the SwapQueue as a message queue for the event log's output thread. See https://codereview.webrtc.org/1687703002/ Review URL: https://codereview.webrtc.org/1812823007 Cr-Commit-Position: refs/heads/master@{#12113}