Using the 'per-revision' script providing the bisect result:

You are probably looking for a change made after 592978 (known good), but no later than 592979 (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/17143592261946d391de629230e47eef90787a1b..569651fe903bf5b1a9e6ebf721541c2a54fb5a28

Suspect : https://chromium.googlesource.com/chromium/src/+/569651fe903bf5b1a9e6ebf721541c2a54fb5a28

From the CL above, assigning the issue to the concern owner 

@rbpotter- 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.

Thanks!

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5e659696b565b65c4b89a2d117c8b4dba5cf30f9

commit 5e659696b565b65c4b89a2d117c8b4dba5cf30f9
Author: rbpotter <rbpotter@chromium.org>
Date: Sat Sep 22 01:13:17 2018

Print Preview Refresh: Fix some spacing issues

(1) For cr-input: Do not apply cr row container mixin to inner div.
This was done accidentally while adding the prefix slot.
(2) Adjust heights/margins so that collate checkbox ripple is not cut
off and collate does not cause the copies section to shift when it
appears.
(3) Ensure collate breaks the word if it is too large, to fix possible
issues with large font sizes/languages where "collate" translates to
something with a very long word.
(4) Reduce checkbox padding - this helps with collate and aligns with
UX request to reduce checkbox padding to as little as possible, without
cutting off the ripple.
(5) Add margin-top: 16 for settings sections, which allows extra
padding applied to more-settings when expanded to be removed (fixes
animation issue).

Bug:  887837 ,  887839 , 887704
Change-Id: I9d3a9bc468ce0ee5b4a2ecfb136233d3a1054902
Reviewed-on: https://chromium-review.googlesource.com/1239333
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#593403}
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/copies_settings.html
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/more_settings.html
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/more_settings.js
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/number_settings_section.html
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/other_options_settings.html
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/print_preview_shared_css.html
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/chrome/browser/resources/print_preview/new/settings_section.html
[modify] https://crrev.com/5e659696b565b65c4b89a2d117c8b4dba5cf30f9/ui/webui/resources/cr_elements/cr_input/cr_input.html

Update:

Verified the fix on Windows(7,8,8.1,10) ,Mac(10.12.6 , 10.13.1 , 10.13.6 , 10.14) and Linux(14.04 LTS) as per comment#0 using latest canary build#71.0.3561.0 and fix is working as intended.
Hence Adding the verified labels.

Attaching screen cast for reference

Deleted: Canary Behaviour.mp4 465 KB

	Canary Behaviour.mp4 465 KB View Download