25ed435afe
This CL doesn't start *using* a=bundle-only; it just adds support for parsing it. We need to do this first, because otherwise old versions of WebRTC will interpret a zero port value as a rejected m= section. BUG=webrtc:4674 Review-Url: https://codereview.webrtc.org/2562183002 Cr-Commit-Position: refs/heads/master@{#15558}