GitLab

Adds a single-item context menu for Hosted app windows (teleport
window). This is currently only supported in single process Mash
because multi user window manager doesn't work in multi process Mash.

Bug: 887051
Change-Id: Ifd1c7a08acf46615ff5fec2f0e7a614c9c99775c
Reviewed-on: https://chromium-review.googlesource.com/c/1287202Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601184}