GitLab

This change adds kIconSystemMenu, kIconSystemMenuToggled types to the
ash color provider.
These colors are utilized in the tray with dark mode being default.

Bug: 960118
Change-Id: I4cf9da17454aa25619a172aca8b038569a0a7849
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2013723
Commit-Queue: Ahmed Mehfooz <amehfooz@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Tim Song <tengs@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734365}