Chrome Version: 69.0.3464.0/10818.0.0 dev channel Daisy,Kip and Reks
OS: Chrome

What steps will reproduce the problem?
1)Sign into User ->click on Uber Tray ->Now click on 'Collapse' icon to collapse uber Tray and now click on 'Expand' icon to expand 
2)Immediately Observe little delay is seen to change from 'Expand' icon to 'Collapse' Icon in Expanded Uber Tray
(Please refer Video and Screenshot)

Note : No delay is seen to change from 'Collapse' Icon to 'Expand' Icon in Collapsed Uber Tray
 
Expected: No such delay should be seen to change from 'Expand' icon to 'Collapse' Icon
Actual: Instead little delay is seen to change from 'Expand' icon to 'Collapse' Icon

This is Non-Regression Issue as 'Expand' icon and 'Collapse' Icon in New Uber Tray UI is seen from 69.0.3463.0

@tetsui : please confirm the Issue
 

Deleted: Actual_DelayToChangeFromExpandIconToCollapseIcon.mp4 11.3 MB

	Actual_DelayToChangeFromExpandIconToCollapseIcon.mp4 11.3 MB View Download

Deleted: Actual_ExpandIconInExpanded Form.jpg 320 KB

	Actual_ExpandIconInExpanded Form.jpg 320 KB View Download

Deleted: Expected_CollapseIconInExpandedForm.jpg 320 KB

	Expected_CollapseIconInExpandedForm.jpg 320 KB View Download