UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10718.63.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.76 Safari/537.36
Platform: 10718.63.0 (Official Build) beta-channel eve

Steps to reproduce the problem:
1. install gmail app
2. try to work with gmail
3. resize window, click around aggressively

What is the expected behavior?
works

What went wrong?
"application not responding" window appears that freezes the whole system

Did this work before? N/A 

Chrome version: 68.0.3440.76  Channel: beta
OS Version: 10718.63.0
Flash Version: