Chrome Version: 71.0.3561.0 (Official Build) 59edfd1d195efd57c937c950c1fd2a708a83f1f0-refs/branch-heads/3561@{#1}(32/64-bit)
OS: Windows(7,8,8.1,10) ,Mac(10.12.6 , 10.13.1 , 10.13.6 , 10.14) and Linux(14.04 LTS) 

What steps will reproduce the problem?
1. Launch chrome and give print command.
2.Enter atleast 4 digit number in scale textfield and press backspace key until last entered digit gets deleted.
3.Observe.

Actual Result: Error message is not seen when all entered digits in scale textfield are removed 
Expected Result: Error message should be seen when all entered digits in scale textfield are removed 

This is a regression issue broken in ‘M-71’ and below is bisect information:
Good Build: 71.0.3551.0 (Revision: 590851)
Bad Build : 71.0.3552.2 (Revision: 591210)

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

You are probably looking for a change made after 591108 (known good), but no later than 591109 (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/974aa7b559b4361d7410479796becb0b933dc6a4..e73e92b7fbf4206ffdb20282ac73bcbed7cf910e

Suspecting: https://chromium.googlesource.com/chromium/src/+/e73e92b7fbf4206ffdb20282ac73bcbed7cf910e

@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.

Kindly review the attached screen-cast for reference.

Thank you.
 

Deleted: Actual Result.mp4 505 KB

	Actual Result.mp4 505 KB View Download

Deleted: Expected Result.mp4 605 KB

	Expected Result.mp4 605 KB View Download