Issue 610396  has been merged into this issue.

michaelpg@, it seems like ImportSupervisedUserTests I merged in https://codereview.chromium.org/1921783002 is flaky in Win7. I can't reproduce the flakiness on linux. I doubt the test logic is wrong. Could checking offsetHeight instead of style.display (to test whether the dialog is visible) be responsible for this?

I don't see anything wrong with the tests. I would try adding some logging in the element and the tests to figure out what's going on and run that on Windows trybots.

Devlin settled on checking the results of getBoundingClientRect but I don't see why offsetHeight would return 0.

https://code.google.com/p/chromium/codesearch#chromium/src/chrome/test/data/webui/extensions/extension_test_util.js&q=file:chrome/test/data/webui/extensions%20visible&sq=package:chromium&type=cs&l=79

+jdufault@

 crbug.com/611619  is also causing flakiness in UserManagerBrowserTest.UserManagerTest that relies on offsetHeight calculations.

Also, if you happen to fix this, here's the commit that disabled the flaky tests:

https://chromium.googlesource.com/chromium/src.git/+/1273112816d19f19f1142dfda1ed95b9e8a6de1f

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e47e3654fd44ec6848cc3bc2123ec5ea08afd111

commit e47e3654fd44ec6848cc3bc2123ec5ea08afd111
Author: mahmadi <mahmadi@chromium.org>
Date: Tue May 31 23:21:08 2016

Use svg icon to avoid lazy loading of Polymer elements for user pods

1) Lazy loading of Polymer was causing flakiness in a set of tests.
2) It also fixes the bug where the overflow menu icon was not appearing on hover.

BUG= 610362 ,  611619 , 615085
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2007133006
Cr-Commit-Position: refs/heads/master@{#396970}

[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/browser/resources/chromeos/login/login_shared.js
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/browser/resources/md_user_manager/user_manager.html
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/browser/resources/md_user_manager/user_manager.js
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/browser/resources/md_user_manager/user_manager_styles.html
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/browser/resources/user_manager/user_manager.html
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/browser/resources/user_manager/user_manager.js
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/test/data/webui/md_user_manager/create_profile_tests.js
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/test/data/webui/md_user_manager/test_profile_browser_proxy.js
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/chrome/test/data/webui/md_user_manager/user_manager_browsertest.js
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/ui/login/account_picker/user_pod_row.css
[modify] https://crrev.com/e47e3654fd44ec6848cc3bc2123ec5ea08afd111/ui/login/account_picker/user_pod_template.html
[delete] https://crrev.com/a8e5d2e3274a104d4a2c54391fc124daaaaae7a7/ui/login/account_picker/user_pod_template.js