@erikchen: Friendly Ping! We are nearing M53 stable release, we need to get this issue fixed before the same.

Could you please provide an update on this issue.

I really appreciate your help.

Thank you!

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b87e1820a06ac5dd1d9881be5342286fac920e43

commit b87e1820a06ac5dd1d9881be5342286fac920e43
Author: erikchen <erikchen@chromium.org>
Date: Fri Aug 12 14:01:28 2016

Fix many memory leaks in chrome/browser/ui/cocoa/omnibox.

Each time I type or delete a character from the omnibox, UpdatePopupApperance is
called at least 3 times. Each call to OmniboxPopupViewMac::UpdatePopupApperance
was leaking an NSViewController*, as well as all omnibox results.

BUG= 636632 

Review-Url: https://codereview.chromium.org/2233123003
Cr-Commit-Position: refs/heads/master@{#411637}

[modify] https://crrev.com/b87e1820a06ac5dd1d9881be5342286fac920e43/chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.h
[modify] https://crrev.com/b87e1820a06ac5dd1d9881be5342286fac920e43/chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.mm
[modify] https://crrev.com/b87e1820a06ac5dd1d9881be5342286fac920e43/chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h
[modify] https://crrev.com/b87e1820a06ac5dd1d9881be5342286fac920e43/chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.mm

Your change meets the bar and is auto-approved for M53 (branch: 2785)

Please merge your change by Monday (08/15) 5:00 PM PT so we can take it in for next week Beta release. Thank you.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7e53ed2c594fff414ec56f1ae97bfbd297f1d352

commit 7e53ed2c594fff414ec56f1ae97bfbd297f1d352
Author: erikchen <erikchen@chromium.org>
Date: Mon Aug 15 22:22:22 2016

[Merge to 2785] Fix many memory leaks in chrome/browser/ui/cocoa/omnibox.

> Each time I type or delete a character from the omnibox, UpdatePopupApperance is
> called at least 3 times. Each call to OmniboxPopupViewMac::UpdatePopupApperance
> was leaking an NSViewController*, as well as all omnibox results.
>
> BUG= 636632 
>
> Review-Url: https://codereview.chromium.org/2233123003
> Cr-Commit-Position: refs/heads/master@{#411637}
> (cherry picked from commit b87e1820a06ac5dd1d9881be5342286fac920e43)

Review URL: https://codereview.chromium.org/2252523002 .

Cr-Commit-Position: refs/branch-heads/2785@{#611}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}

[modify] https://crrev.com/7e53ed2c594fff414ec56f1ae97bfbd297f1d352/chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.h
[modify] https://crrev.com/7e53ed2c594fff414ec56f1ae97bfbd297f1d352/chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.mm
[modify] https://crrev.com/7e53ed2c594fff414ec56f1ae97bfbd297f1d352/chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h
[modify] https://crrev.com/7e53ed2c594fff414ec56f1ae97bfbd297f1d352/chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.mm

@erikchen: Hey, are there any manual steps for TE to verify here ?

If so, I request you to provide the same to verify the issue.

Appreciate your help.

Thank you!

It's likely possible to use either Instruments or chrome://tracing to verify this, but there is some complexity involved. If TEs are in general interested in the topic of looking into memory leaks, I could probably give a talk about it.