Just ignoring single_packet_reduction_len is wrong, because if the
fragment is put in a single packet it might still be the first or the
last packet in the whole sequence.
Bug: none
Change-Id: I4a2fbebe1d49cbef9298bb32d9cecaa617e4dfc3
Reviewed-on: https://webrtc-review.googlesource.com/c/115403
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26084}
ea7e7a9753