GitLab

SequenceManagerPerfTest also time MessageLoop and WorkerPool

Currently it only tests SingleThreadTaskRunners

Change-Id: I73997d105d74b31a1b52b85fd076b81ff99e7958
Reviewed-on: https://chromium-review.googlesource.com/c/1290985
Commit-Queue: Alex Clarke <alexclarke@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Alexander Timin <altimin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601164}