QA:Backwards Compat Grid

Build 675 on content-status-add-typography
1200px
Reviewing disabled
The baseline is thinner than the new snapshot (1210x620 to 1211x620).
Baseline History
Build 6756751b9d
Current build. There are unaccepted changes, so build 659 is still the baseline.
Build 61541d683e
Accepted by Zhihao Cui.
Commenting is disabled because there's a newer build on this branch