Chrome Version: 69.0.3487.0
OS: Android N
Device: Pixel
VRCore: 1.16.201071054)

What steps will reproduce the problem?
(1) Reset all Chrome permissions. Settings > Apps > Chrome > Storage > Manage Space, click "Clear all data"
(2) Enable all permissions in Chrome. Settings > Apps > Chrome > Permissions, then enable all of them.
(3) Go to https://immersive-web.github.io/webxr-samples/tests/permission-request.html and enter VR Browsing.
(4) Press enter VR button
(5) Using cursor, select the microphone icon.
The Allow/Block infobar appears.

What is the expected result? No crash.

What happens instead? Content froze briefly after the infobar appeared, then Chrome crashed.

This didn't repro with a few more attempts.

Uploaded Crash Report ID 1444ca5d2a5a7e37 
Crash report uploaded on Wednesday, July 11, 2018 at 8:39:53 AM