Chrome Version:53.0.2785.0 Revision 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}
OS: Mac Pro(10.10.5, 10.11.4)

Test Url: https://chrome.google.com/webstore/detail/calendar-theme-inspired-b/dbhckmakhfceadaocgmgblaccdnjgaka?hl=en

Pre-condition: Install ‘Calendar theme’ using above url.

What steps will reproduce the problem?
1. Launch chrome, open Incognito window and observe R.H.S of the tabstrip. 

Actual: Incognito icon is not visible after step 1.
Expected: Incognito icon should be visible.

This is regression issue,broken in ‘M 51’ and below is narrow bisect:
https://chromium.googlesource.com/chromium/src/+log/5121a34129f274edc61a288f73f99b39eb06e1e7..b38be38cee2027dcb827ebc61abb23508b8e5d25?pretty=fuller&n=100

Suspecting: r378367

Good build:51.0.2663.0
Bad build:51.0.2664.0

Note: Issue is not reproducible on Windows and Linux OS.

 

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	incog.png 59.3 KB View Download