Version: 53.0.2746.0
OS: Ubuntu 14.04,Windows

Pre-condition: Enable 'Material Design User Manager' flag from 'chrome://flags'

What steps will reproduce the problem?
(1)Launch chrome -> Sign into Profile-> click on avatar icon 
(2)Now click on 'Switch person' option for User Manager window-> Select 'ADD PERSON'-> Now Check the 'Supervise this person...' checkbox -> click "Select an account" Dropdown
(3)Now hover the Mouse on accounts and observe focus remains on 'Select an account' dropdown(Please refer Video and screenshot)

Expected:  On mouse hovering Focus should be shifted to selected Account and should not remain on 'Select an account' dropdown 

Actual: Instead  two Focuses are seen i.e. on 'Select an account' dropdown and on selected Account On mouse hovering

Note:On using Up and Down arrow keys from Keyboard focus is not seen on  'Select an account' dropdown i.e. it is shifting to selected options

This is Non-Regression Issue as Focus for Options in 'Select an account' dropdown on Mouse hovering is introduced from 53.0.2744.0 Build

Below is the MANUAL CHANGELOG URL:
https://chromium.googlesource.com/chromium/src/+log/52.0.2743.0..53.0.2744.0?pretty=fuller&n=10000

Suspecting https://codereview.chromium.org/1995933003  from Manual Changelog

@mahmadi : Please feel free to re-assign if its not related to your change
 

Deleted: Actual_FocusOnTwoOptions.ogv 2.5 MB

Actual_FocusOnTwoOptions.ogv 2.5 MB Download

Deleted: Actual_FocusOnTwoOptions.png 215 KB

	Actual_FocusOnTwoOptions.png 215 KB View Download