Chrome Version : 71.0.3578.75 (Official Build) 06ef00b5279f93f8e0c1e73acedd49d7dcc09767-refs/branch-heads/3578@{#836} 64 bit
OS : Mac(10.13.6, 10.13.1, 10.14.2)

What steps will reproduce the problem?
1. Launch chrome and open NTP.
2. Now drag any 'Thumbnail' from NTP and try to drop it in Bookmarks bar.
3. Observe.

Actual Result : Unable to drag 'Thumbnails' from NTP and drop it into Bookmarks bar.

Expected Result : Chrome should allow user to drag thumbnails from NTP and drop it into a Bookmarks bar.

This is a regression issue broken in M-71 and below is the bisect info:
Good Build :71.0.3570.0 (Revision : 596429)
Bad Build :71.0.3571.0 (Revision : 596950)

Change log URL:
https://chromium.googlesource.com/chromium/src/+log/97f45221020b6ea5ae2989831a8835d4046c3a62..34fe6ebdd3544516a9d0c5b15f31eede61c91637

Suspecting : https://chromium.googlesource.com/chromium/src/+/34fe6ebdd3544516a9d0c5b15f31eede61c91637

avi@ : 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.

Note:

1. This is Mac OS specific issue and same is working fine in Linux(14.04 LTS) and Windows(7,8,10) OS. (Attaching Windows OS behaviour for reference)
2. Able to repro issue in Dev #72.0.3622.0 and Canary build #72.0.3624.0

Thank you..!
 

Deleted: Actual_Result.mov 6.1 MB

	Actual_Result.mov 6.1 MB View Download

Deleted: Expected_Result.mov 4.0 MB

	Expected_Result.mov 4.0 MB View Download

Deleted: Windows OS Behavior.mp4 460 KB

	Windows OS Behavior.mp4 460 KB View Download