Manual Regression range
Good Build: 54.0.2809.0
Bad Build : 54.0.2810.0

Narrow Bisect:
https://chromium.googlesource.com/chromium/src/+log/a86eb14b66aec353ca5f12980f53f5c7935371b5..4a25002ddbb8aece950b4fadefea4a9ac4632ef8?pretty=fuller&n=1000

Suspecting: r408172?

Kindly help to re-assign if your change is not the cause of this issue.

Note: Issue is not seen on Windows(7,8,8.1,10)

Deleted: Actual_Profile.mov 1.4 MB

Actual_Profile.mov 1.4 MB Download

Deleted: Expected_Profile.mov 1.3 MB

Expected_Profile.mov 1.3 MB Download

Correction: Issue is also seen on Windows(7,8,8.1,10).

Adding RB Label as this is a recent Regression. Please remove if not required.
Thank You.

Issue is still reproducible on the latest canary(54.0.2816.4) on Mac OS 10.11.5.

Cc'ing sky@ as well for https://codereview.chromium.org/2184613005 in the regression range for more inputs.

This is from my change.  I will look into it next week.

enne@: Is there any update on this Blocker issue?

Appreciate your response!

No, there is no update.  I don't think it is P1 or blocking, however.  It is a slight jank in content update.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ee0504e307d6ed18a94a96eae8a4b57adcff4b11

commit ee0504e307d6ed18a94a96eae8a4b57adcff4b11
Author: enne <enne@chromium.org>
Date: Fri Aug 12 22:49:41 2016

Fix jank during mac resize

Allow SetNeedsBeginFrames messages to be handled on Mac during resize.
If this message is not handled, then the renderer says that it needs
frames but the message is ignored because of the resize lock.  Then, the
browser never sends begin frame messages and the renderer then never is
able to produce a frame.  This means that it can't produce a frame of
the right size before the resize lock times out and there's jank on
screen.

R=ccameron@chromium.org,sievers@chromium.org
BUG= 632603 

Review-Url: https://codereview.chromium.org/2246613002
Cr-Commit-Position: refs/heads/master@{#411806}

[modify] https://crrev.com/ee0504e307d6ed18a94a96eae8a4b57adcff4b11/content/browser/renderer_host/render_message_filter.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/403810b6f9fe48ae77b6f19fc2c7e413e2088a00

commit 403810b6f9fe48ae77b6f19fc2c7e413e2088a00
Author: enne <enne@chromium.org>
Date: Wed Aug 17 19:51:15 2016

Revert of Fix jank during mac resize (patchset #2 id:20001 of https://codereview.chromium.org/2246613002/ )

Reason for revert:
Causes fullscreen flash videos to be all white on Mac

BUG=638561

Original issue's description:
> Fix jank during mac resize
>
> Allow SetNeedsBeginFrames messages to be handled on Mac during resize.
> If this message is not handled, then the renderer says that it needs
> frames but the message is ignored because of the resize lock.  Then, the
> browser never sends begin frame messages and the renderer then never is
> able to produce a frame.  This means that it can't produce a frame of
> the right size before the resize lock times out and there's jank on
> screen.
>
> R=ccameron@chromium.org,sievers@chromium.org
> BUG= 632603 
>
> Committed: https://crrev.com/ee0504e307d6ed18a94a96eae8a4b57adcff4b11
> Cr-Commit-Position: refs/heads/master@{#411806}

TBR=asvitkine@chromium.org,ccameron@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG= 632603 

Review-Url: https://codereview.chromium.org/2255893002
Cr-Commit-Position: refs/heads/master@{#412615}

[modify] https://crrev.com/403810b6f9fe48ae77b6f19fc2c7e413e2088a00/content/browser/renderer_host/render_message_filter.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e5ce61d4966237e3572f3048a6ea39c7ba7d7c64

commit e5ce61d4966237e3572f3048a6ea39c7ba7d7c64
Author: enne <enne@chromium.org>
Date: Tue Aug 23 00:25:04 2016

Fix jank during mac resize

Allow SetNeedsBeginFrames messages to be handled on Mac during resize.
If this message is not handled, then the renderer says that it needs
frames but the message is ignored because of the resize lock.  Then, the
browser never sends begin frame messages and the renderer then never is
able to produce a frame.  This means that it can't produce a frame of
the right size before the resize lock times out and there's jank on
screen.

R=ccameron@chromium.org,sievers@chromium.org
BUG= 632603 ,638561

Review-Url: https://codereview.chromium.org/2246613002
Cr-Commit-Position: refs/heads/master@{#413601}

[modify] https://crrev.com/e5ce61d4966237e3572f3048a6ea39c7ba7d7c64/content/browser/renderer_host/render_message_filter.cc
[modify] https://crrev.com/e5ce61d4966237e3572f3048a6ea39c7ba7d7c64/content/browser/renderer_host/render_widget_host_impl.cc

--Chrome Identity automated triaging--

This bug is Assigned and has gone one month without any activity, so it is being moved to Available to indicate that it is not actively being worked on. If you are working on this bug, please mark yourself as the owner and move back to Assigned. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Belatedly marking this as fixed after those patches above landed.