GitLab

This gets attached to the XRInputSourceDescription mojo struct
which is sent from XR device processes to blink.

For WMR controllers, use:
["windows-mixed-reality", "touchpad-thumbstick-controller"]

Populating this array for other platforms such as Oculus and OpenVR
will come in later CL(s).

Bug: 979250
Change-Id: I06c6666c4c085f6578630c25059d07faff158bbd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1726903
Commit-Queue: Jacob DeWitt <jacde@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683004}