This makes the delay manager interface significantly simpler and easier to expose.
Bug: None
Change-Id: Ie3d37c3b869eb17ca421a76e9d1af8f0a1a36ee5
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/364781
Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43186}
