Version: 66.0.3342.0 (Official Build) Revision7a08be580eb458170d11b34a8de66fe08db41bc5-refs/heads/master@{#534887}(32/64-bit)
OS: Windows (7,8,8.1,10),Mac OS X(10.12.6,10.13.1,10.13.4)

What steps will reproduce the problem?
1. Launch chrome,navigate to chrome://settings/ page and right click on tab strip and duplicate tab
2. Now click on profile icon and observe chrome://settings/manageProfile page

Actual: Flickering of chrome://settings/manageProfile page is seen 
Expected: Flickering of chrome://settings/manageProfile page should not be seen 

This is regression issue, broken in ‘M 66’ and below is the bisect info :
Good build: 66.0.3341.0  (Revision: 534606).
Bad build: 66.0.3342.0 (Revision: 534887).

You are probably looking for a change made after 534783 (known good), but no later than 534784 (first known bad).

CHANGELOG 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/6004ffda60f0f0eb9add40b57d948a86c4895b48..35de6279853992a31a7a271b6293a4651a1a0338

Suspect : https://chromium.googlesource.com/chromium/src/+/35de6279853992a31a7a271b6293a4651a1a0338

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

@weiliangc- 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.

Thanks!

Note : Above issue is not seen on Linux (14.04 LTS) OS
 

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