Note: Does not include code for the actual late allocation
of PTs.
Bug: webrtc:360058654
Change-Id: Iaa6bd2db2f974aad84fe1ae9c1aca5aea5d1d25e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/362320
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43014}
97c594fafe