GitLab

Once a layout is performed, if anything moves, that will schedule paints
as appropriate.

Bug: 627663
Change-Id: Ia6c32431f39af8380ebb9e9ec9a357ea5366da84
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2348292Reviewed-by: Shakti Sahu <shaktisahu@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797509}