If the DFM is not available after a timeout, close Chrome (on SVR) or launch it in 2D-in-VR mode (on standalones). After, show an immersive notification with the text "Chrome is still preparing for VR. Try again later." on SVR or a toast with the text "Chrome is still preparing for VR. Restart Chrome later." on standalones.
Comment 1 by bugdroid1@chromium.org
, Jan 3