tree 1870b74f96e212918ffbcbcf5fac11c5dcafced9
parent 01ff41e594af0b40dd9c502f0d506a2124f662ac
author Philipp Hancke <phancke@meta.com> 1714752761 -0700
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1715013517 +0000

sdp: document existing mid backfill cornercases

mids get backfilled starting with 0 which means they are always
present in the answer (even though JSEP says otherwise) and may
even be backfilled in a manner compatible with their usage in a
BUNDLE group. Those cases are ok-ish but should be documented by
tests.

BUG=None

Change-Id: I69f0475c279da5022109a56f0006169dbc2de147
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349380
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42234}