801b868bd8
The downstream application doesn't use CA_UPDATE and the related code are removed to simplify the BaseChannel. TBR=pthatcher@webrtc.org Bug: webrtc:8521 Change-Id: I9adc1539db7feb7b5c3aafba7a2be7100f2c068a Reviewed-on: https://webrtc-review.googlesource.com/22205 Commit-Queue: Zhi Huang <zhihuang@webrtc.org> Reviewed-by: Steve Anton <steveanton@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20693}