Currently a bug in InitEncode() sets all stream initially to active. This CL actually bases the active-flag on available start bitrate. Bug: webrtc:9747 Change-Id: If197b0c69376d96c717f2a391fba8108895018f3 Reviewed-on: https://webrtc-review.googlesource.com/99960 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24711}