Chrome Version: 57.0.2987.50
OS: Android 7.1.2
Device: Pixel

What steps will reproduce the problem?
In magic window mode:
1. Access https://webvr.info/samples/03-vr-presentation.html on the test device
2. Rotate the device vertically until it is completely vertical (i.e. the screen is directly in front of the user and not rotated)
3. Turn the test device right or left until the FPS display is no longer in view, approximately 90 degrees
4. Select the “Reset Pose” button


What is the expected result? the content’s view has been updated so that the FPS display is now centered

What happens instead? the content's view remains the same.