This check was originally added in  issue 687369 .

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8847dabd9aef1075e157dced4d511a77308dedc2

commit 8847dabd9aef1075e157dced4d511a77308dedc2
Author: mthiesse <mthiesse@chromium.org>
Date: Thu May 04 18:47:29 2017

Remove fullscreen requirement from listening for vrdisplayactivate inside a frame.

BUG= 718445 

Review-Url: https://codereview.chromium.org/2862863002
Cr-Commit-Position: refs/heads/master@{#469399}

[modify] https://crrev.com/8847dabd9aef1075e157dced4d511a77308dedc2/third_party/WebKit/Source/modules/vr/NavigatorVR.cpp

Your change meets the bar and is auto-approved for M59. Please go ahead and merge the CL to branch 3071 manually. Please contact milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), gkihumba@(ChromeOS), Abdul Syed@(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/+/ac83b7cb79d0de2130143ce662d82bcf593201cf

commit ac83b7cb79d0de2130143ce662d82bcf593201cf
Author: Michael Thiessen <mthiesse@google.com>
Date: Fri May 05 19:10:20 2017

Remove fullscreen requirement from listening for vrdisplayactivate inside a frame.

BUG= 718445 

Review-Url: https://codereview.chromium.org/2862863002
Cr-Commit-Position: refs/heads/master@{#469399}
(cherry picked from commit 8847dabd9aef1075e157dced4d511a77308dedc2)

Review-Url: https://codereview.chromium.org/2860163007 .
Cr-Commit-Position: refs/branch-heads/3071@{#423}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}

[modify] https://crrev.com/ac83b7cb79d0de2130143ce662d82bcf593201cf/third_party/WebKit/Source/modules/vr/NavigatorVR.cpp