I've created a gif to show what I mean, as it's hard to explain. https://gyazo.com/4b9c08f1f760b0dc889fc475a1bfb501

I bet this problem is related to incorrect usage of autoresizing mask on the omnibox. Unfortunately, we're just not going to be able to get to this before switching to MacViews browser, which is a while off.

We had a similar bug which was tracked and fixed in  issue 681004 . Can you reproduce it with latest Canary from https://www.google.de/chrome/browser/canary.html ?

Thanks for your feedback in advance.

I can reproduce this, need a bisect to confirm when it started.

As a workaround, you can rearrange the icons so that the most important extensions are at the left, then drag the divider to hide some of them.

(I bumped the priority because I suspect this was triggered by the RTL work lgrey@ has been doing. If so, it's a recent regression.)

I've confirmed it still happens in Canary (58.0.3013.0 (Official Build) canary (64-bit)).

@sdy Good shout, I've moved everything up in order of most used. Thanks for the suggestion!

Bisect Information:
---------------------

Good build: 57.0.2972.0
Bad build:  57.0.2974.0

Using the per-revision bisect providing the bisect results,

You are probably looking for a change made after 441924 (known good), but no later than 441925 (first known bad).

CHANGE-LOG URL:
-----------------
https://chromium.googlesource.com/chromium/src/+log/5d044bb4fef05b493693b2d548352bc025f08d46..8b0fd02afc2107ba123774e0a464a43407a108cf

From the CL above, assigning the issue to the concern owner
Review-Url: https://codereview.chromium.org/2607533004

Note: Adding RB-Stable since this is a recent regression on M57, please feel free to edit if this is not the case.

Thanks!

URGENT - PTAL ASAP.

We're getting VERY close to M57 Stable promotion. And 
this issue is marked as M57 stable release blocker. Pls make sure to land the fix and get it merged into the release branch ASAP so it gets enough baking time in Beta (before Stable promotion).

Know that this issue shouldn't block the release?  Remove the ReleaseBlock-Stable label or move to M58.

Thank you.

lgrey@ - are you able to take a look at this?

Will look now

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d7c2f4bb0e4c021de15a5ae97d86c3cb35f44e50

commit d7c2f4bb0e4c021de15a5ae97d86c3cb35f44e50
Author: lgrey <lgrey@chromium.org>
Date: Thu Feb 23 21:39:37 2017

[Mac] Shrink width of browser action container when location bar is min size

BUG= 691596 

Review-Url: https://codereview.chromium.org/2709083005
Cr-Commit-Position: refs/heads/master@{#452639}

[modify] https://crrev.com/d7c2f4bb0e4c021de15a5ae97d86c3cb35f44e50/chrome/browser/ui/cocoa/toolbar/toolbar_controller.mm

Verified this issue on Mac OS 10.12 using chrome latest canary M58-58.0.3024.0 and observed no overlapping of extensions icons while minimizing the chrome window. Hence adding TE-Verified label for M-58.

Thanks!

Thank you Bibin for verifying bug on Canary.
lgrey@, please request a merge to M57 if you think it will be a safe merge. Thank you.

Your change meets the bar and is auto-approved for M57. Please go ahead and merge the CL to branch 2987 manually. Please contact milestone owner if you have questions.
Owners: amineer@(clank), cmasso@(bling), ketakid@(cros), govind@(desktop)

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

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b7fef325ed0a2c4c534e67524873b3cdbae14838

commit b7fef325ed0a2c4c534e67524873b3cdbae14838
Author: Elly Fong-Jones <ellyjones@chromium.org>
Date: Mon Feb 27 15:44:13 2017

[Mac] Shrink width of browser action container when location bar is min size

BUG= 691596 

Review-Url: https://codereview.chromium.org/2709083005
Cr-Commit-Position: refs/heads/master@{#452639}
(cherry picked from commit d7c2f4bb0e4c021de15a5ae97d86c3cb35f44e50)

Review-Url: https://codereview.chromium.org/2716283003 .
Cr-Commit-Position: refs/branch-heads/2987@{#696}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}

[modify] https://crrev.com/b7fef325ed0a2c4c534e67524873b3cdbae14838/chrome/browser/ui/cocoa/toolbar/toolbar_controller.mm

Verified this issue on Mac OS 10.12.3 using chrome Beta version# 57.0.2987.88 and no overlapping of extensions icons are observed while minimizing the chrome window. 

Adding TE-Verified label for M-57.

Thanks!