GitLab

It's a cheaper alternative that gets the same visuals. Design doc in the
linked bug. First application will be on the overview item close button.

Short-term follow ups:
1) Apply on ink drops ash-wide.
2) Change ink drop highlight for ash ink drops to use solid color layer.

Test: manual
Bug: 1042303
Change-Id: Ia1728762fd9234304277e3bb42c12dfa03f87fef
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2026527
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#737182}