
libvpx already supports VP9 profile 1. Add code to enable SDP negotiation of receiving VP9 profile 1. Bug: webrtc:11555 Change-Id: I35d12d159a1414aac744f202331d3a9c4a84f5af Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/176322 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Johannes Kron <kron@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31509}