Chrome Version: 55.0.2875.0 (Official Build) 065f3e402db7b3bb85f648586b8d63769c24edde-refs/heads/master@{#421703} 32/64-bit
OS:  Windows (7,8,10), Linux (Ubuntu 14.04 LTS), Mac (10.10.5,10.11.4)

Steps:
1. Launch chrome and navigate to chrome://md-settings/
2. Click on 'Font size' drop down menu 
3. Now click on profile icon and observe the bottom RHS of the overlay.

Actual: Glimpse of blue line is seen on the overlay.

Expected: No such glimpse should be seen.

This is a regression issue broken in M-53.

Manual Regression Range:
Good Build:53.0.2770.0 
Bad Build: 53.0.2771.0 

Narrow Bisect: 
https://chromium.googlesource.com/chromium/src/+log/2a1d902c9b711bddee9b8fab3c6643d2e24f8815..59650de52fb52324b91c67086e2d9afeac5d8114?pretty=fuller&n=100

Suspecting: r400318 ?

Please re-assign if your change is not the cause of this issue.

 

Deleted: Seetings_glimpse.mp4 151 KB

	Seetings_glimpse.mp4 151 KB View Download

Deleted: Settings_expected.mp4 415 KB

	Settings_expected.mp4 415 KB View Download