Chrome Version: 63.0.3234.0 (Official Build) 1d130aa149687b0c8df63ae8276f4ef07afca8cd-refs/heads/master@{#506936} 32/64-bit.
OS: Windows (7,8,8.1,10),Linux (14.04 LTS).

What steps will reproduce the problem?
1. Launch Chrome, open DevTools and press F1 key to open 'Settings' page.
2. Go to 'Throttling' section and click on 'Add custom profile' button.
3. Zoom out the page to 80% using "Ctrl + mouse wheel" and observe.

Unnecessary scroll bar appears on 'Add custom profile' overlay.
Scroll bar should not appear on 'Add custom profile' overlay.

This is a regression issue, broken in M-62 series, below is manual regression range.

Good build: 62.0.3178.0 
Bad build: 62.0.3179.0

You are probably looking for a change made after 492372 (known good), but no later than 492373 (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/8ae3ea1c2efcf9d2786cb1af66315b08f0a95051..01cf6fd553bcc6d5a9ca6763eed42fbca5ecc494

Suspect: https://chromium.googlesource.com/chromium/src/+/01cf6fd553bcc6d5a9ca6763eed42fbca5ecc494

@szager: Kindly help to reassign, if your changes are not related to this issue.

Note: This issue is not seen on Mac OS.

Kindly review the attached screen-cast for reference.
 

Deleted: Scroll_Actual.mp4 758 KB

	Scroll_Actual.mp4 758 KB View Download

Deleted: Scroll_Expected.mp4 566 KB

	Scroll_Expected.mp4 566 KB View Download