Chrome Version:64.0.3260.0 Revision eec83ceb16d47f70f5804a140687e268a6230b5c-refs/heads/master@{#514066}(64bit)
OS: Mac(10.12.6,10.13.1),Windows(7,8,10), Linux(14.1LTS) 

Pre-condition: 1. Enabled 'Enable Material Design extensions' flag from chrome://flags

What steps will reproduce the problem?
(1) Launch chrome, navigate to chrome://extensions/?id=ghbmnnjooekpmoecnnnilnnbdlolhkhi
(2) Click on "i" icon near 'Allow in incognito' and then press Tab and observe
(3) Press Shift+Tab and observe.

Actual: Focus is not seen on radio button after pressing Tab key.

Expected: Focus should seen on radio button after pressing Tab key.

This is a regression issue, broken in 'M-64', below is bisect info:

Good Build:64.0.3257.0
Bad Build: 64.0.3259.0

You are probably looking for a change made after 513676 (known good), but no later than 513677 (first known bad).
CHANGELOG URL:
The script might not always return single CL as suspect as some perf builds might get missing due to failure.
https://chromium.googlesource.com/chromium/src/+log/1df805e3dc25af0ee0590467fa896c78aba34526..c22a8c67597f2c801b424f9cff4f6e6fd44bab12

Suspect: https://chromium.googlesource.com/chromium/src/+/c22a8c67597f2c801b424f9cff4f6e6fd44bab12
 

Deleted: Actual_Extensions.mov 2.3 MB

Actual_Extensions.mov 2.3 MB Download

Deleted: Expected_extensions.mov 2.6 MB

Expected_extensions.mov 2.6 MB Download