Chrome Version:73.0.3664.3 (Official Build) Revision cac0e5b7d469aad82d6fd21ee684caeec1c5cf46-refs/branch-heads/3664@{#5}(32/64-bit)
OS: Windows(7,8,8.1,10), Mac(10.13.1, 10.13.6, 10.14.3) and Linux(14.04 LTS) OS

What steps will reproduce the problem?
1.Launch chrome and open two tabs.
2.On both the tabs, Press F12 to open dev tools, click on Performance link and then press Ctrl+E to start profiling.
3.Switch to second NTP and click on 'Stop' button to stop profiling.
4.Now try to click on the close(x) icon on the top right of the devtools window and observe.

Actual Result  : Unable to close dev tools window after stopping profiler.
Expected Result: Close(x) icon should be enabled and should be able to close dev tools window after profiling is stopped.

This is a regression issue, broken in 'M-71'and below is the chromium bisect info,
Good Build:71.0.3550.0(Revision:590499)
Bad Build :71.0.3551.0(Revision:590850)

You are probably looking for a change made after 590839 (known good), but no later than 590840 (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/b955903bed7c037e90beba90b19aa3bc392f959a..e3c0571b911459aa128bc0c2bc6bcde378cae359

Suspect : https://chromium.googlesource.com/chromium/src/+/e3c0571b911459aa128bc0c2bc6bcde378cae359

@kozyatinskiy : 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.

Kindly refer the attached screen-cast.
 
Thank You.

 

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	ActualVideo.mp4 1.1 MB View Download

Deleted: ExpectedVideo.mp4 854 KB

	ExpectedVideo.mp4 854 KB View Download