GitLab

https://chromium-review.googlesource.com/c/chromium/src/+/1351501 has
reverted some perf changes due to high-end mac laptops crashing. Re-add
that CL piece by piece, starting here.

Re-add 2 tests: a render of google-sheets and an intense shader-based
test that will be GPU bound.

Bug: 908515
Change-Id: I2d371c1db7e5e1502367fb7c2093f4ec521f3b62
Reviewed-on: https://chromium-review.googlesource.com/c/1352339Reviewed-by: Ned Nguyen <nednguyen@google.com>
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Reviewed-by: Caleb Rouleau <crouleau@chromium.org>
Commit-Queue: Aaron Krajeski <aaronhk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611303}