In your example, isn't it AutofillInteractiveTest.DynamicFormFill that fails? Does AutofillInteractiveTest.AutofillEvents fail often too?

@sebsg yes, AutofillEvents fails too:
https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/26169
https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/26164

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8e13fba3f9411dff9366429b8112a8a96dcb9080

commit 8e13fba3f9411dff9366429b8112a8a96dcb9080
Author: sebsg <sebsg@chromium.org>
Date: Wed Sep 14 13:45:13 2016

The test is flaky.

BUG= 646576 

Review-Url: https://codereview.chromium.org/2330293003
Cr-Commit-Position: refs/heads/master@{#418543}

[modify] https://crrev.com/8e13fba3f9411dff9366429b8112a8a96dcb9080/chrome/browser/autofill/autofill_interactive_uitest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/eee013cb0a6d5610ac0e9b849f03ae51180ec1c3

commit eee013cb0a6d5610ac0e9b849f03ae51180ec1c3
Author: sebsg <sebsg@chromium.org>
Date: Wed Sep 14 13:56:30 2016

[Autofill] Disable AutofillInteractiveTest.AutofillEvents on ChromeOS.

BUG= 646576 

TBR=vabr@chromium.org

Review-Url: https://codereview.chromium.org/2343643002
Cr-Commit-Position: refs/heads/master@{#418547}

[modify] https://crrev.com/eee013cb0a6d5610ac0e9b849f03ae51180ec1c3/chrome/browser/autofill/autofill_interactive_uitest.cc

I will investigate the flakes soon. Closing this bug thanks!

Reopening and merging into  https://crbug.com/834768