[test] Skip Slimming Paint layout tests.
[test] Skip Slimming Paint layout tests.

Also make the expectation lint check happy.

TBR=jochen@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1137993003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#28336}

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh