6bb1b6e7fe
Permits setting RTP extensions for AudioReceiveStream without enabling combined A/V BWE. This prevents spamming the log with "Failed to find extension id:". BUG=webrtc:4870 R=mflodman@webrtc.org, stefan@webrtc.org Review URL: https://codereview.webrtc.org/1256803004 Cr-Commit-Position: refs/heads/master@{#9633}