Able to reproduce the issue on Windows 7,Mac OS 10.12.4, Ubuntu 14.04 using latest Canary #61.0.3138.0 dev

Manual Bisect Info:
-------------------
Good build:61.0.3136.0(480665)
Bad build :61.0.3137.0(481056)

Using per-revision bisect providing the bisect results:

You are probably looking for a change made after 480727 (known good), but no later than 480728 (first known bad).
CHANGELOG URL:
 https://chromium.googlesource.com/chromium/src/+log/e60d1d4ae98c4c916db70cb2f090f59e3ad76a51..ca6a9f1f759e79a3a08be1747c47ee9354db6cff

Suspecting: https://chromium.googlesource.com/chromium/src/+/ca6a9f1f759e79a3a08be1747c47ee9354db6cff
Review-Url: https://codereview.chromium.org/2914033002

allada@:Could you please take a look into this issue and reassign if this issue is not related to your change.

Thanks..!!

@allada -- Could you please look into the issue and provide an update.
Thanks in Advance.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/41957a695219fcad78fee46ca3b00e4aac388799

commit 41957a695219fcad78fee46ca3b00e4aac388799
Author: Nathan Bruer <allada@chromium.org>
Date: Fri Jul 07 22:12:27 2017

[Devtools] Fixed regression from SDK.TracingModel.reset() being called

Fixes a regression caused by:
https://chromium-review.googlesource.com/c/526855/

SDK.TracingModel.reset() was removed in favor of destroy() and
re-constructing it, but closure did not complain because of
@unrestricted. This patch also will keep this from happening here by
removing @unrestricted from classes in NetworkPanel.js.

R=caseq
BUG= 736219 

Change-Id: I4284602dbaca4af93e6645dd395ce4ebc51613ed
Reviewed-on: https://chromium-review.googlesource.com/562299
Commit-Queue: Blaise Bruer <allada@chromium.org>
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#485068}
[modify] https://crrev.com/41957a695219fcad78fee46ca3b00e4aac388799/third_party/WebKit/LayoutTests/inspector/throttling/mobile-throttling.html
[modify] https://crrev.com/41957a695219fcad78fee46ca3b00e4aac388799/third_party/WebKit/Source/devtools/front_end/network/NetworkPanel.js

Tested this on Windows 7(61.0.3153.3),Mac OS 10.12.4, Ubuntu 14.04 using latest Canary #61.0.3154.0 dev and Observed that after reloading the page still able to  see 'Hit F5 to reload and capture filmstrip' message which is not as expected.

Attached screen-cast for your reference
@allada: Could you please confirm whether this is intended behavior..
Thanks!!

Deleted: 736219.webm 2.1 MB

	736219.webm 2.1 MB View Download

A friendly reminder that M61 branch is coming soon on 07/20! Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix ASAP to trunk. This way we branch M61 from a high quality trunk. Thank you.

allada@: Could you please review the C#4 and update accordingly.

allada@,

friendly ping to get an update on this issue as per comment#4, as it is marked RB stable.
Thanks..!!

allada@: Could you please check the issue as per C#4 and update accordingly.
Thanks..!!

This patch did not fix it, but was needed for the patch that actually does fix it.

URGENT - PTAL.
Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix and get it merged into the M61 branch #3163 ASAP to have enough baking time in Beta before Stable promotion. Thank you!

Know that this issue shouldn't block the release?  Remove the ReleaseBlock-Stable label.

@Allada: Is there any latest update's available on this issue? since it's tagged with Release Block Stable.

Thanks!!

Archiving feature requests that we are unlikely to address during the next 18 months.