Chrome Version: 70.0.3538.38 (Official Build) Revision 0e080dc98bc41db12157d14a92b48e55e18b1b41-refs/branch-heads/3538@{#723} (32/64 Bit)

OS: Windows(7,8,8.1,10), Mac(10.12.6, 10.13.1, 10.13.6, 10.14), Linux(14.04 LTS).

What steps will reproduce the problem?
1. Launch Chrome, open NTP.
2. Click on Avatar icon such that avatar overlay opens.
3. Continue clicking on avatar icon multiple times (at least 11-12 clicks).
4. Observe Header area on avatar overlay.

Actual Result: Header area on Avatar overlay disappears after multiple click.

Expected Result: Header area on Avatar overlay should not disappear after multiple clicks.

This is a regression issue broken in ‘M-70’ and below is the 'per-revision' bisect information.
Good Build: 70.0.3525.0(Revision:583912)
Bad Build: 70.0.3526.0(Revision:584272)

You are probably looking for a change made after 583987 (known good), but no later than 583988 (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/f7f385986a69d648d77b0b9f7821e7901df5c90f..00d099ea75e9565afdee5be3f8e4f54eabc7ae0b

Suspect: https://chromium.googlesource.com/chromium/src/+/00d099ea75e9565afdee5be3f8e4f54eabc7ae0b

@droger: 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. Able to reproduce issue on Dev build #71.0.3559.6 and latest Canary build #71.0.3564.0

Kindly refer the screen-cast from below given link.

https://drive.google.com/drive/folders/1LqZi30R1quxBXsJGWequF-vj7zs_E-SV?usp=sharing

Thank You!