Chrome Version: 66.0.3340.0 (Official Build) Revision cf4b77e4ccc0da994c6322f71863b0d17bb5c99f-refs/heads/master@{#534315} (32/64-bit)
OS: Windows (7,8,8.1,10), Mac(10.12.6, 10.13.1, 10.13.4), Linux(14.04 LTS)

What steps will reproduce the problem?
(1) Launch chrome, navigate to chrome://history/
(2) Click on 'Tabs from other devices' option from the LHS menu.
(3) Sign in to chrome with valid credentials and observe that a list of all devices is displayed.
(4) Try clicking on the 'actions' icon for any of the entry and observe.
  
Actual Result: Unable to open actions menu list on clicking 'actions' icon.
Expected Result: Actions menu list should open on clicking 'actions' icon.

This is regression issue broken in ‘M-66’ and providing the bisect using per-revision bisect,
Good build: 66.0.3336.0 (Revision: 533410)
Bad build: 66.0.3338.0 (Revision: 534242)

You are probably looking for a change made after 533916 (known good), but no later than 533917 (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/c5d6215aa737d444849bdc614f0fcd96c8ce6edc..c69754281d9862212a7957ee367812dcb52bfb18

Suspect: https://chromium.googlesource.com/chromium/src/+/c69754281d9862212a7957ee367812dcb52bfb18

@dpapad: 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!