Michael, this may have been fixed with your previous omnibox visibility fix.

David, can you please verify that this bug is either fixed or still reproducible? I don't have an LG G3 to test with.

Hi Michael, I can repro it but only if I exit the presentation very quickly after entering. If I wait a few seconds, I can't repro it. 68.0.3439.0

It also repros on a Pixel device. And it's easy to repro with cardboard as the headset by using the x to close immediately after entering the presentation. It's possible to repro also with Daydream as the headset but much more difficult. I had to be really fast at hitting the x button. (Sorry, I should have checked this when I first logged the bug.)

This is pretty much certainly in M67 as well but at this point it's too late to do anything about it.

I'll see if I can come up with a less flaky fix for controls hiding.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1920a358f0797dc61fdc1c48041715339c02a900

commit 1920a358f0797dc61fdc1c48041715339c02a900
Author: Michael Thiessen <mthiesse@chromium.org>
Date: Fri May 25 16:44:54 2018

VR: Don't animate control container.

It seems like the races between the hiding propagating and us showing
the controls goes away when we turn off animations. I don't remember why
we originally had to animate the controls, but I think whatever problems
that was working around have since been fixed.

Bug:  840891 
Change-Id: I5420ba311c82ef284514667d5c8eb66b9e387654
Reviewed-on: https://chromium-review.googlesource.com/1072735
Reviewed-by: Biao She <bshe@chromium.org>
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561910}
[modify] https://crrev.com/1920a358f0797dc61fdc1c48041715339c02a900/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellImpl.java

Note that this was also possible with a WebVR site.

Couldn't repro on Canary anymore. Appears to be fixed.

Your change meets the bar and is auto-approved for M68. Please go ahead and merge the CL to branch 3440 manually. Please contact milestone owner if you have questions.
Owners: cmasso@(Android), kariahda@(iOS), bhthompson@(ChromeOS), abdulsyed@(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/+/1c6e95c8e12d9857e4c57ab3229a266aba987bd4

commit 1c6e95c8e12d9857e4c57ab3229a266aba987bd4
Author: Michael Thiessen <mthiesse@chromium.org>
Date: Tue May 29 15:33:30 2018

VR: Don't animate control container.

It seems like the races between the hiding propagating and us showing
the controls goes away when we turn off animations. I don't remember why
we originally had to animate the controls, but I think whatever problems
that was working around have since been fixed.

TBR=mthiesse@chromium.org

(cherry picked from commit 1920a358f0797dc61fdc1c48041715339c02a900)

Bug:  840891 
Change-Id: I5420ba311c82ef284514667d5c8eb66b9e387654
Reviewed-on: https://chromium-review.googlesource.com/1072735
Reviewed-by: Biao She <bshe@chromium.org>
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#561910}
Reviewed-on: https://chromium-review.googlesource.com/1076320
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/branch-heads/3440@{#20}
Cr-Branched-From: 010ddcfda246975d194964ccf20038ebbdec6084-refs/heads/master@{#561733}
[modify] https://crrev.com/1c6e95c8e12d9857e4c57ab3229a266aba987bd4/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellImpl.java

Verified in Chrome Beta 68.0.3440.39