70c7fe14ac
This constraint will be equal to kEchoCancellation until we've updated Chromium to use kGoogEchoCancellation where that constraint is needed. Once that's done, I'll change kEchoCancellation to be 'echoCancellation'. BUG=webrtc:4747 R=andrew@webrtc.org Review URL: https://codereview.webrtc.org/1179233003. Cr-Commit-Position: refs/heads/master@{#9433}