UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15
Platform: 11151.59.0 (Official Build) stable-channel auron_yuna

Steps to reproduce the problem:
1. After some unknown trigger sadly, but when it occurs it does exhibit in the demo app used here: https://codelabs.developers.google.com/codelabs/optimized-for-chromeos/index.html

What is the expected behavior?
The DragShadowBuilder's image is centered on the touch point

What went wrong?
The DragShadowBuilder's image is offset by ~300px to right and below the touch point.

Did this work before? N/A 

Chrome version: <Copy from: 'about:version'>  Channel: stable
OS Version: 71.0.3578.94
Flash Version: 

Apologies for the vagueness but our theory is that it's in the compatibility layer for Android on ChromeOS. A reboot fixes the issue for a while but then something goes wrong and the drag image becomes offset from the touch point.