Chrome Version: 64.0.3282.190/10176.76.0 Stable-channel Daisy,Kip,Reks  
OS:Chrome OS

What steps will reproduce the problem?
(1)Sign into user >>From ubertray/Accessibility >> enable on-screen keyboard
(2)Launch chrome,open https://mail.google.com/
(3)Click to pop-up virtual keyboard >> close it and observe white patch 

Actual: Delay with white patch is seen while closing Onscreen keyboard in https://mail.google.com/
Expected: No such delay with white patch should be seen

This is a Non-Regression issue seen from M-62

Note: Issue is not seen in Linux,Windows OS

Attached the screencast for reference..
 

Deleted: Actual.webm 1.7 MB

	Actual.webm 1.7 MB View Download