Unfortunate typo and weak tests made it so if only a middle spatial layer is active, vp9 encoder would be configured to send two top layers. Bug: webrtc:11319 Change-Id: I460c245044f60ea7e0127c0e4134d0edab85f4f3 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185043 Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32164}