Chrome Version:64.0.3278.0 (Official Build) 6218872807f9d8f9e64630c7cefe0ab18954585a-refs/heads/master@{#519169}(32/64 bit)
OS: Windows (7,8,10),Linux (14.04 LTS),Mac(10.12.6, 10.13.2).

Steps to reproduce:
1. Launch chrome and navigate to 'chrome://settings/siteData'.
2. Try to select the contents in the cookie listing using mouse and observe.

Actual Result: Unable to select the contents on 'chrome://settings/siteData' using mouse.
Expected Result: Should be able to select the contents on 'chrome://settings/siteData' using mouse.

This is Regression issue broken in 'M-64' and Using the per-revision bisect providing the bisect results,
Good Build:63.0.3238.0(Revision: 508209)
Bad Build:63.0.3239.0(Revision: 508578)

You are probably looking for a change made after 508490 (known good), but no later than 508491 (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/4cdc761ecbeb58ad52db6667c9f505af9dd0bed3..7bd49763ba4347be4b631a6443346f3ac1dcdb24

Suspect: https://chromium.googlesource.com/chromium/src/+/7bd49763ba4347be4b631a6443346f3ac1dcdb24

@dschuyler - 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: ActualVideo.mp4 1.0 MB

	ActualVideo.mp4 1.0 MB View Download

Deleted: ExpectedVideo.mp4 724 KB

	ExpectedVideo.mp4 724 KB View Download