instead reparse nalu boundaries from the bitstream.
H264 is the last use of the RTPFragmentationHeader and this would allow
to avoid passing and precalculating this legacy structure.
Bug: webrtc:6471
Change-Id: Ia6e8bf0836fd5c022423d836894cde81f136d1f1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178911
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31746}