Chrome Version:72.0.3618.0 (Official Build) Revision 473cb3615ccd757dbfd816963e699299a0732b59-refs/branch-heads/3618@{#1}(32/64-Bit)
OS : Mac(10.13.1, 10.13.6, 10.14.2)

What steps will reproduce the problem?
1. Launch chrome, get tab focus on wrench menu icon(besides omnibox).
2. When focus is on wrench menu, Press space bar to open the wrench menu list. 
3. Now press space bar again and observe.

Actual Result   : On Pressing space bar for second time tab focus shifts to first option in wrench menu.
Expected Result : On Pressing space bar for second the wrench menu list should get closed and focus ring should appear on wrench menu icon.

This is a regression issue broken in M-70 and below is the bisect information:
Good Build : 70.0.3503.0 (Revision : 578160)
Bad Build  : 70.0.3504.0 (Revision : 578510)

You are probably looking for a change made after 578333 (known good), but no later than 578334 (first known bad).
CHANGE-LOG 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/bcb7db78edc13f57577f0a9562c98918bdcc10ae..67d21d10815fe6d87d1785a65a50fbc386e6605b

Suspect : https://chromium.googlesource.com/chromium/src/+/67d21d10815fe6d87d1785a65a50fbc386e6605b

@ellyjones: Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Note:
1. Issue is Mac OS specific.
2. Able to reproduce issue in Stable #70.0.3538.110 , Beta #71.0.3578.62 , Dev #72.0.3610.2.

Kindly refer the attached screen-cast.

Thank You..!!

 

Deleted: ActualVideo.mov 1.6 MB

	ActualVideo.mov 1.6 MB View Download

Deleted: ExpectedVideo.mov 2.1 MB

	ExpectedVideo.mov 2.1 MB View Download