Chrome Version: 66.0.3358.0 Revision 16fdb6c5f5d6e5779983e253b5f7c8bdd1cac610-refs/heads/master@{#539998}(32/64 bit)
OS: Win(7,8,8.1,10), Linux(14.04 LTS), Mac(10.12.6,10.13.1,10.13.4)

What steps will reproduce the problem?
(1) Launch chrome, navigate to chrome://flags and observe favicon icon of page in tab strip

Actual: Favicon icon seems different than expected. 

Expected: Favicon icon should seen properly.

This is a regression issue, broken in M-66 series, and providing bisect using bisect per-revision

Manual Bisect:
Good Build:66.0.3357.0(Revision:539662)
Bad Build:66.0.3358.0 (Revision:539998)

You are probably looking for a change made after 539742(known good), but no later than 539743(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/f3b3701c383ab247d1b737727b2546f05d2d326f..f43dc78128f4977252d8eb3ab2f1d3302f9562cb

Suspect: https://chromium.googlesource.com/chromium/src/+/f43dc78128f4977252d8eb3ab2f1d3302f9562cb

pbos@: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.
 

Deleted: Actual_Icon.mp4 214 KB

	Actual_Icon.mp4 214 KB View Download

Deleted: Expected_Icon.mp4 98.8 KB

	Expected_Icon.mp4 98.8 KB View Download