The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4f541dad409d18a0f845226b223b0af31541b780

commit 4f541dad409d18a0f845226b223b0af31541b780
Author: Michael Thiessen <mthiesse@chromium.org>
Date: Tue Nov 21 20:32:34 2017

Make disabling magic window a cross-platform concept + add regression test.

Moves the concept of disabling magic window poses into VRDeviceBase.

Bug:  777868 
Change-Id: I5ab317faf5ad04abb47558e041446cfc1a484da0
Reviewed-on: https://chromium-review.googlesource.com/776165
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Reviewed-by: David Dorwin <ddorwin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#518369}
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/chrome/browser/android/vr_shell/vr_shell_delegate.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/android/gvr/gvr_device.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/android/gvr/gvr_device.h
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/openvr/openvr_device.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/openvr/openvr_device.h
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/test/fake_vr_device.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/test/fake_vr_device.h
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/vr_device.h
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/vr_device_base.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/vr_device_base.h
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/vr_device_base_unittest.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/vr_display_impl.cc
[modify] https://crrev.com/4f541dad409d18a0f845226b223b0af31541b780/device/vr/vr_display_impl.h