Issue is also seen in windows.

Issue is reproducible on the latest canary(52.0.2730.0) on Mac OS 10.11.4 as well.

Note: Issue is not seen on 52.0.2729.0.

Many more issue are seen in bookmarks

1.Steps: Go to Bookmark manager >> Try adding page/folder from organize/folders sections and observe for bookmarked data in bookmark manager

2.Steps: Star any page on top right corner and observe for bookmarked page in bookmark manager

Last good build: 52.0.2729.0
First bad build: 52.0.2730.0

Changelog:
==========
https://chromium.googlesource.com/chromium/src/+log/eab436d1bc2621beb79603ad478d9e21baff739d..ab21e7d69da6e7fa059dba9fc363db630ea2de02

Suspecting: https://codereview.chromium.org/1919183005

dpapad@: Could you please take a look and confirm if the change could be related.

Appreciate your help!

 Issue 610605  has been merged into this issue.

This is caused by my change indeed. Looking...

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/87d0ec171e127ec7477c5d323f5e0d8715af12e5

commit 87d0ec171e127ec7477c5d323f5e0d8715af12e5
Author: dpapad <dpapad@chromium.org>
Date: Tue May 10 18:24:26 2016

WebUI: Fix bookmark manager regression.

BUG= 610602 
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/1965863002
Cr-Commit-Position: refs/heads/master@{#392656}

[modify] https://crrev.com/87d0ec171e127ec7477c5d323f5e0d8715af12e5/chrome/browser/resources/bookmark_manager/main.html

 Issue 610929  has been merged into this issue.