Chrome update on the PE demos discussed today

Hi Patrick:

Good news: the bugs causing the demo failures have been fixed a few days
ago (https://codereview.chromium.org/1989623002). Just confirmed that both
these demos now work with touch on latest (ToT) chromium build:
https://patrickhlauke.github.io/touch/3d-jquery-rotator/index-pointerevents.html
https://patrickhlauke.github.io/touch/tracker/tracker-width-height.html

The fix hasn't reached Chrome Beta yet, and we mistakenly "rediscovered"
the issue yesterday (crbug.com/621549) only to realize the mistake later on.

Current Chrome canary for Windows should work, please give it a try.

Mustaq