to follow PR64 spec change https://github.com/AOMediaCodec/av1-rtp-spec/pull/64 Bug: webrtc:10342 Change-Id: Ic082d5e551b5f38427d5a43be987b0d35f6ea155 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/160001 Reviewed-by: Philip Eliasson <philipel@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29832}