Using the per-revision bisect providing the bisect results,
Good build: 55.0.2855.0 (Revision: 417475).
Bad build: 55.0.2857.0 (Revision: 417845).

You are probably looking for a change made after 417581 (known good), but no later than 417582 (first known bad).

CHANGE-LOG URL:
---------------
https://chromium.googlesource.com/chromium/src/+log/fdae1ec9baa35c06de65e8b823336c5772e7060e..f3ebdac066bc591fd3dbe8400bd527e6c027e38e

From the CL above, assigning the issue to the concern owner

@mahmadi:Could you please look into the issue, pardon me if it has nothing to do with your changes and if possible please assign it to concern owner.

Review-Url:https://codereview.chromium.org/2324153002

Note : Able to reproduce the issue in Ubuntu 14.04,Win 10.0 and Mac 10.12.2.

Assigning to the new owner msarda@

Friendly ping!!
Still we are able to reproduce this issue on latest Canary#58.0.3014.0.
jlebel@, Could you please look into this & update the thread accordingly.

Thank you!!

I just tried with Version 58.0.3012.0 (64-bit). I can't reproduce this issue on macOS and on Linux. You just press tab?

Do you have any extensions? If so did you try without any extensions?

With response to comment #5: The above issue is reproducible on latest Canary # 58.0.3019.0. To reproduce the issue open Switch person window, click in the empty area and then press Tab key.

msarda@ can you reproduce this issue on Windows?

Comment #6, Do you have any extensions? If so did you try without any extensions?

With response to comment #8:
I do not have any extension installed and I am able to reproduce the above mentioned issue without any extension.

Thank you.

Still able to reproduce the issue on Win-10 using latest canary #59.0.3046.0.

jlebel@ - Friendly Ping...!!

Could you please have a look into this issue.

Thanks...!!

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

This appears to only be an issue on Windows. I am also unable to reproduce it on Mac.

It's not P1, but sounds like it's still a valid P2 bug. Keeping assigned to you, Jerome, with P2.

I can't on macOS using 60.0.3097.0 neither, and Linux 60.3098.0.

I need to find a windows computer to try it.

msarda, can you reproduce this bug?

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot