This fixes inconsistency in names of variables and fields which represent spatial/temporal index of layer: simulcast_svc_idx -> spatial_idx spatial_layer_idx -> spatial_idx temporal_layer_idx -> temporal_idx Also, this adds printing of spatial/temporal index and target bitrate to RD report. Bug: none Change-Id: Ic4dfdadc57a1577bb3d35d1782a152a9dbef0280 Reviewed-on: https://webrtc-review.googlesource.com/69981 Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22869}