Chrome Version:72.0.3619.0 (Official Build) Revision	c1cb2d33f1513aa3900c3fce0470cf76faad4458-refs/branch-heads/3619@{#1} (32/64-bit)

OS: Win(7,8,8.1,10), Linux(14.04 LTS) and Mac(10.13.1,10.13.6, 10.14.1).

Pre-Condition: Enable "Enable using the Google local NTP"  and "New Tab Page Custom Links" flags under chrome://flags and Relaunch the browser.

Steps to reproduce:
1. Launch chrome, Navigate to chrome://settings/fonts and set 'Minimum font size' to Huge.
2. Open NTP and resize the browser towards LHS. 
3. Click on 'Add shortcuts' button and add any shortcut. 
4. Observe the Toast Notification bar at bottom till it diappears.

Actual Result  : Transition effect of the Toast Notification bar is not smooth. 
Expected Result: Transition effect of the Toast Notification bar should be smooth.

This is a Regression issue seen from 'M-72' and providing the bisect info below:
Good Build: 72.0.3518.0 (Revision: 610279)
Bad Build:  72.0.3519.0 (Revision: 610515)

You are probably looking for a change made after 610309 (known good), but no later than 610310 (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/a647637f94a56b4167f45fb766dec2d9948174e8..96bad709196135fff3a18568d1337b1376e01ebd	

Suspect: https://chromium.googlesource.com/chromium/src/+/96bad709196135fff3a18568d1337b1376e01ebd

@Kristi : 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 for reference.

Thank You!
 

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	Actual_Result.mov 6.7 MB View Download

Deleted: Expected_Result.mov 4.0 MB

	Expected_Result.mov 4.0 MB View Download