QA:Backwards Compat Grid

Build 545 on layer-layout-component
1200px
Reviewing disabled
Baseline History
Build 545696464c
Current build. There are unaccepted changes, so build 532 is still the baseline.
Build 5250e63956
Auto-accepted
Build 4893835c13
Auto-accepted
Build 4888c98674
Accepted by Alina Visan.
Commenting is disabled because there's a newer build on this branch