Predator and CL did not find any possible suspects.
Using Code Search for the file, "navigatorvr.cpp" assigning to the concern owner.

@haraken -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/77af5df222bb276283d2c97fccbd91b32de286ce

commit 77af5df222bb276283d2c97fccbd91b32de286ce
Author: sigbjornf <sigbjornf@opera.com>
Date: Tue Feb 21 11:38:56 2017

Gracefully handle navigator.getVRDisplays() in detached contexts.

R=haraken
BUG= 686602 

Review-Url: https://codereview.chromium.org/2703283003
Cr-Commit-Position: refs/heads/master@{#451734}

[add] https://crrev.com/77af5df222bb276283d2c97fccbd91b32de286ce/third_party/WebKit/LayoutTests/vr/getVRDisplays_detached.html
[modify] https://crrev.com/77af5df222bb276283d2c97fccbd91b32de286ce/third_party/WebKit/Source/modules/vr/NavigatorVR.cpp

ClusterFuzz has detected this issue as fixed in range 451713:451738.

Detailed report: https://clusterfuzz.com/testcase?key=6343955034931200

Fuzzer: inferno_twister
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: UNKNOWN
Crash Address: 0x00000017
Crash State:
  blink::NavigatorVR::NavigatorVR
  blink::NavigatorVR::from
  blink::NavigatorVR::getVRDisplays
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=446719:446721
Fixed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=451713:451738

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv97-qQi1lE4BVMWOeeQWyT50ZHcmQK8U-BoboFmn5Sx0LybRKHWye63FK2vAEE8zgKvumxItXc9hEETdMnWMQ2clf93gnZcN9cz08hKWddW0dnWKqgVZkHhskDEoPRpjtzyK2XMesMK3CNAEaXrajkPvqqJ51NDLyFXM3Db4YH0mxcxh9bO0jOsP0cEuA3GQXeuipeX0L4O7X6klaT8Q14AtWOZsFx-xLc8WD5CiQlaEJpmvZKpTEgW4HJgfiHM2sgR5fnbgz2ytsfomFDn_VLY1cbin996qczuKWFBWphfhX-0xuURhRfLwGAcBAdrmMaorXe8UI_ezTCzArZ_THj3E7pDux-QSSgakyud2OaIkdAHRp88?testcase_id=6343955034931200


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.