It is not uncommon to save rtp header of an rtp packet for later parsing
(e.g. rtc event log does that)
Such header is invalid as an rtp packet when padding bit is set.
This change suggest to treat header only packets with padding as valid.
Bug: webrtc:5261
Change-Id: If61d84fc37383d2e9cfaf9b618276983d334702e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/225265
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34438}
44450a073b