Chrome Version: 71.0.3573.0 (Official Build) Revision 540477605ecd461a31985e4fcd67e8786e895802-refs/branch-heads/3573@{#1}(32/64-bit)
OS: Windows(7,8,8.1,10), Mac (10.12.6, 10.13.1, 10.13.6, 10.14.1) and Linux(14.04)

Steps to reproduce:
1. Launch chrome,press Ctrl+P to open print preview overlay.
2. Choose 'Custom' margins under 'More settings' section.
3. Observe that on hovering over print preview the current margin dimensions are displayed in a text field.
4. Now click inside the text field and delete the already present value and observe.

Actual Result  :Cursor and underline in margin text field remain blue even after deleting the displayed value.
Expected Result:Red Cursor and red underline should be visible for indicating that it is an invalid value.

This is a regression issue broken in ‘M-67’ and below is the 'per-revision' bisect information:
Good Build : 67.0.3392.0 (Revision : 549094)
Bad Build  : 67.0.3393.0 (Revision : 549377)

You are probably looking for a change made after 549208 (known good), but no later than 549209 (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/cb2eb33ca1619da601eacb7ca5f9698a339ce8fd..b5497698ba7873b8bb59adc58e69495604e5ded8

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 refer the attached screen-cast.

Thank you..!
 

 

Deleted: ActualVideo.mp4 503 KB

	ActualVideo.mp4 503 KB View Download

Deleted: ExpectedVideo.mp4 673 KB

	ExpectedVideo.mp4 673 KB View Download