GitLab

Whenever an elevation is set (and the BubbleBorder is no longer
default) remove the 1px border stroke.

This brings the touchable app context menus closer to spec.

Bug: 830929
Change-Id: Ia95af9088e2a7cb17b6195700b9cf73e1d0d9c86
Reviewed-on: https://chromium-review.googlesource.com/1008417
Commit-Queue: Alex Newcomer <newcomer@chromium.org>
Reviewed-by: Michael Wasserman <msw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550703}