Version: 65.0.3283.0 8b187d71895ad00e5f0c2f9406f309daae5386a0-refs/heads/master@{#521170} (32/64-bit)
OS: Windows (7,8,8.1,10),Linux (14.04 LTS),Mac OS X(10.11.6,10.12.3)

What steps will reproduce the problem?
1. Launch chrome, navigate to NTP and open devtools.
2. Now open console drawer using 'Esc' key and select 'Changes' option from 'More options' iron icon
3. Now click on 'New style rule' icon to add item in 'changes' window and then bring focus on 'X' close icon of console drawer and press 'Tab' key to move focus ahead,observe

Actual: Focus is lost after pressing 'Tab' key or 'Shift + Tab' key to reverse focus in 'Changes' window 
Expected: Focus should be seen after pressing 'Tab' key or 'Shift + Tab' key to reverse focus in 'Changes' window

This is a non-regression issue, seen from M-64 series as 'Changes' window feature in devtools appears from build # 64.0.3282.0

Kindly review the attached video for reference.
 

Deleted: Actual_video.mov 5.2 MB

Actual_video.mov 5.2 MB Download