GitLab

Renames TouchlessUiController to TouchlessModelCoordinator, and
introduces TouchlessUiCoordinator to abstract touchless UI logic out of
NoTouchActivity to be re-used by ChromeActivity et al soon.

Bug: 961734
Change-Id: I8f3d815067d314166f9777b954fc8b410c4dfa56
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1605633Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/heads/master@{#658771}