GitLab

* mash and single-process-mash are under active development
* show-taps and touch-hud-debug are used by developers for touch screen
  debugging

Bug: none
Change-Id: Ic4ce5ff34dd03f270ccfbe645dc321d7ed9b8b28
Reviewed-on: https://chromium-review.googlesource.com/c/1350963Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: James Cook <jamescook@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610966}