Chrome version : 69.0.3445.0 (Official Build) 8eda1aad730564e28e235f48f35f290eaf6da997-refs/branch-heads/3445@{#1}(32/64-bit) 

OS : Windows(7,8,8.1,10) ,Linux(14.04 LTS) and Mac(10.12.6 , 10.13.1 , 10.13.5) OS 

Steps to reproduce:
1. Launch chrome and navigate to 'chrome://settings'.
2. click on 'Open a specific page or set of pages' radio button under 'On startup' and click on 'Add a new page'
3. Now enter 'Semi colon'(i.e ;) in 'Site URL' text field on 'Add a new page' overlay and observe.

Actual Result: Unwanted vertical scroll bar is seen on 'Add a new page' overlay in 'chrome://settings'
Expected Result: Vertical scroll bar should not be seen on 'Add a new page' overlay in 'chrome://settings'

This is regression issue, broken in ‘M 68’ and below is the bisect info :
Good build: 68.0.3438.0  (Revision: 560884).
Bad build: 68.0.3439.0 (Revision: 561388).

You are probably looking for a change made after 561364 (known good), but no later than 561365 (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/2d085ab3bdfac01d330584c3447ca00f84417811..29bc0a300e670bb159425a47a5ad7bade2cdf386

Suspect : https://chromium.googlesource.com/chromium/src/+/29bc0a300e670bb159425a47a5ad7bade2cdf386

@aee- 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.

Thank You.
 

Deleted: Actual_result.mp4 388 KB

	Actual_result.mp4 388 KB View Download

Deleted: Expected_result.mp4 337 KB

	Expected_result.mp4 337 KB View Download