UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10452.85.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Safari/537.36
Platform: Google_Eve.9584.107.0

Steps to reproduce the problem:
1. Launch Google assistant by long pressing the circle icon in the task bar

What is the expected behavior?
Pressing the menu icon (circular icon) dismisses Google assistant as on Android

What went wrong?
Assistant window remains open

Did this work before? No 

Chrome version: 66.0.3359.158  Channel: stable
OS Version: 10452.85.0
Flash Version: 29.0.0.171