[media-queries] Browser full screen and CSS media types

Is there still any interest in having a CSS media type for browsers that
support a "chromeless / F11 key" full screen mode?

For example, Opera switches the CSS media type to @projection and I believe
is the only browser to do so.

Reason being is that Mozilla's javascript fullscreen API proposal [1]
introduces a new media type @full-screen and I'm curious how the
"chromeless" mode should interact (if at all) with their proposal.

Thanks,
Andrew

[1] https://wiki.mozilla.org/Gecko:FullScreenAPI