Chrome Version : 68.0.3440.68 (Official Build) d2ca6001e233a025f2e51e7b97ca8fade5cb6a18-refs/branch-heads/3440@{#710} 32/64 bit
OS: Mac (10.12.6, 10.13.1, 10.14, 10.13.6)

Pre-condition: Enabled 'Use Views browser windows instead of Cocoa.' flag from chrome://flags.

What steps will reproduce the problem?
(1) Launch chrome, navigate to https://permission.site/ page.
(2) Click on Fullscreen button then click on Location (permission bubble appears)
(3) Now exit fullscreen and observe bubble.

Actual: Weird two bubbles is seen while exiting fullscreen.

Expected: Bubble should seen properly while exiting fullscreen.

This is a regression issue, broken in 'M68', below is bisect info:

Good Build:68.0.3409.0(Revision: 553715)
Bad Build: 68.0.3410.0(Revision: 554249)

You are probably looking for a change made after 553897 (known good), but no later than 553898 (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/689599319903ef86aff7d38b0d1070e547e2e230..780a71ed089233d25709d37f382191e905c55b6f

Suspect: https://chromium.googlesource.com/chromium/src/+/780a71ed089233d25709d37f382191e905c55b6f

@alancutter: 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: Issue is not seen on Windows (7,8,8.1,10) and Linux (14.04 LTS) OS.
Thank You!
 

Deleted: Actual_Bubble.mov 4.6 MB

	Actual_Bubble.mov 4.6 MB View Download

Deleted: Expected Behaviour.mp4 280 KB

	Expected Behaviour.mp4 280 KB View Download