The trial name WebRTC-VP9-PerLayerSpeed is used to
a) set encoding speed per spatial layer, based on resolution
b) allow explicitly overriding speed per layer, for testing
Additionally, this CL updates the vp9 wrapper in preparation for
injectable trials.
Bug: webrtc:11551, webrtc:11926
Change-Id: I2bb3a664feaef60483ffc241b71070284d3e0172
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/186400
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32294}
e3c436b16a