Using the per-revision bisect providing the bisect results
Good build: 66.0.3328.0 (Revision: 530802).
Bad build: 66.0.3329.0 (Revision: 531127).

You are probably looking for a change made after 531027 (known good), but no later than 531028 (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/11473ab0085c51e624218df1e8d89dea73ac349d..affe36d3b5bcb2e4595f7c976b65d9332b17518d

Suspect : https://chromium.googlesource.com/chromium/src/+/affe36d3b5bcb2e4595f7c976b65d9332b17518d

From the CL above, assigning the issue to the concern owner 
@ssid- 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.

Thanks!

Note : Above issue is not seen on Windows (7,8,8.1,10),Linux (14.04 LTS) and Mac (10.13.3) OS

Adding release blocker label for this issue.Please reduce priority or remove if not the case.

Thank You!

My change only affects android.
https://chromium-review.googlesource.com/875141 actually changes devtools. Assigning to dgozman@

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bba4afa414f8069aec8d5cff829b4a278766a76d

commit bba4afa414f8069aec8d5cff829b4a278766a76d
Author: Dmitry Gozman <dgozman@chromium.org>
Date: Fri Jan 26 23:16:28 2018

[DevTools] Set rootDOMNode on ElementsTreeOutline when loading ElementsPanel

When showing ElementsPanel, all the tree outlines are not wired
to DOMModels yet, and therefore did not updated root node with a document.
We used to manually do that from ElementsPanel, but removed it recently.

Bug:  805353 
Change-Id: I2b15a2368de92bcda090b95f22e912e553badd9b
Reviewed-on: https://chromium-review.googlesource.com/887648
Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
Commit-Queue: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532085}
[modify] https://crrev.com/bba4afa414f8069aec8d5cff829b4a278766a76d/third_party/WebKit/Source/devtools/front_end/elements/ElementsPanel.js

Rechecked the above issue on Mac OS X(10.12.6,10.13.1) with latest canary chrome version : 66.0.3334.0 and the issue is still reproducible.Kindly refer attached screen cast for reference.

Deleted: Actual_video.mov 6.1 MB

	Actual_video.mov 6.1 MB View Download

Hmm... I cannot repro this on Linux 66.0.3335.0 (Developer Build) (64-bit). Will try Mac later.

Cannot repro on Mac 66.0.3334.0 (Official Build) canary (64-bit) either.

Rechecked the above issue on Mac OS X(10.12.6,10.13.1) with latest canary chrome version : 66.0.3334.0 and the issue is still reproducible.

Note :
1. Freshly launch chrome and perform steps mentioned in description. 
2. Sometimes issue is not reproduced at first instance,then clear recorded audit and try re-running Audit second time and see if issue is reproduced.
3. As show in the attached "66.0.3334.0 behavior" video at the first instance issue was not reproducible but after clearing the audits and again performing the steps mentioned in the description we are able to reproduce the issue.

Attaching "66.0.3334.0 behavior" screen cast for the same.

Thank you.

Deleted: 66.0.3334.0 behaviour.mov 6.6 MB

	66.0.3334.0 behaviour.mov 6.6 MB View Download

Rechecked the above issue on Mac OS X(10.12.6,10.13.1) with latest canary chrome version : 66.0.3344.0 and the issue is fixed.Kindly refer attached screen cast for reference.

Deleted: Actual_video.mov 6.3 MB

	Actual_video.mov 6.3 MB View Download