The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/074006e2e9f8c05f624876b54abc07fbb4658215

commit 074006e2e9f8c05f624876b54abc07fbb4658215
Author: warx <warx@chromium.org>
Date: Mon Jun 27 05:54:07 2016

Docked windows resized on unlock with vertical shelf position

It is because there is a new added shelf state: SHELF_ALIGNMENT_BOTTOM_LOCKED for locked state, and it can change the display work area some time from locked state to unlocked state.

BUG= 622431 
TEST=manually test saw bug goes away.

Review-Url: https://codereview.chromium.org/2092863004
Cr-Commit-Position: refs/heads/master@{#402120}

[modify] https://crrev.com/074006e2e9f8c05f624876b54abc07fbb4658215/ash/shelf/shelf_layout_manager.cc

 Issue 625544  has been merged into this issue.

I have received update Version 52.0.2743.116 (64-bit) Stable and the problem persists. ETA on fix?

Thanks.

should be available on M53 stable channel.

Thanks for the update. There a timetable for M53?

Sep 6th

Verified on ChromeOS 8872.18.0, 55.0.2883.20

This is still an issue for me, but it might only occur on reboot now.  (All of my windows are being resized to the incorrect shelf position on every reboot.)

Version 56.0.2924.58 beta (64-bit)
Platform 9000.58.0 (Official Build) beta-channel stumpy
Firmware Google_Stumpy.2.102.0

I still get this issue all the time... like literally every 20 or 30
minutes i have to move my windows to get them fixed.

Re-opening as per comments #14 and #15.

Let us still mark this as fixed based on the reporter's repro steps. #14 and #15 should be  issue 679208 .

I posted comment #15. It isn't  issue 679208 . My issue is that my windows drop "beneath" the shelf. The shelf position isn't the problem. The problem is that windows incorrectly resize to a vertical position beneath the shelf, whereas the lowest they should go is the top of the shelf.

My issue is not 679208 either: when I log in the shelves are in the correct positions, it's just that the windows have been shrunk by the height of the (nonexistent) bottom shelf.

OK. There are some shelf related changes recently. On tot (m57), the behavior is:
(1) shelf left
(2) browser window right snapped by pressing alt+]
(3) sign out
(4) sign in, find that shelf is set to bottom, which is  issue 679208 .

on latest m56 build, it is:
(1) shelf left
(2) browser window right snapped by pressing alt+]
(3) sign out
(5) sign in, shelf is still left, but browser window shrinks by a "shelf height".

Both of them are related to signout and signin, not locking/unlocking. I will file a bug for this.

Per comment 15 and 18, from your description, it seems your snapped window is gradually moving down? I am not sure what it is. If so, this should be a new bug.

cc msw@, abodenha@.

Still close this because locking/unlocking works fine. It only happens on signout and signin.

Verified based on the reporter's repro steps.