GitLab

Makes CircleHighlightPathGenerator use RoundedRect. Tested manually and
the highlights/ripples/focus rings look the same, minus the previous
extra renderpass.

Test: manual
Bug: 1042303
Change-Id: Ib2010b4b8ba9838bfee9f9d6eb696bb6fffb843f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2037849
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738680}