Chrome Version: 63.0.3226.0 Revision 209b73b2d53c279870bd421b7c04a1427798e2ef-refs/heads/master@{#504841}(64 bit)
OS: Mac(10.12.6)

What steps will reproduce the problem?
(1) Launch chrome, navigate to chrome://bookmarks page and click on 'Organize' icon
(2) Select 'Add new folder' option and save it then drag added bookmark folder to search text box.
(3) Press Enter key and observe.

Actual: Unwanted 'Rename folder' overlay is seen after pressing Enter key.

Expected: 'Rename folder' overlay should not seen after pressing Enter key.

This is a regression issue,broken in 'M-60', below is bisect info:

Good Build: 60.0.3100.0
Bad Build: 60.0.3102.0

Narrow Bisect: 
https://chromium.googlesource.com/chromium/src/+log/79e3cc6d695903af9f32b770fd80f67e878587e7..e0255eded6d4fb960323b8aa66065783ea9ae5e1?pretty=fuller&n=10000

Suspect: r471657

Note: 1.Unable to provide bisect using bisect-per-revison script as build does not get launched.
      2.Issue is not seen on Windows and Linux OS.
 

Deleted: Actual_Bookmark.mov 2.8 MB

Actual_Bookmark.mov 2.8 MB Download

Deleted: Expected_Bookmark.mov 1.6 MB

Expected_Bookmark.mov 1.6 MB Download