Niels Möller 0848994ad8 Replace AsyncInvoker with PostDelayedTask, in DtmfSender
And add thread annotations.

Bug: webrtc:12339
Change-Id: I5c945b3f5f3f6490dff3040bd26cec035b6660ff
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/212025
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Taylor <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33501}
2021-03-18 10:21:00 +00:00
..
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