[csswg-drafts] [mediaqueries] Consider making device-pixel-ratio a standard alias.

wisniewskit has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [mediaqueries] Consider making device-pixel-ratio a standard alias.
 ==
In Firefox bug 771329 we're discussing whether it's worthwhile to add 
an unprefixed version of -webkit-device-pixel-ratio, since its use 
seems to be ingrained with web developers (instead of using resolution
 media-queries with dppx units).

Given that traction, it seems reasonable to discourage the use of 
prefixes by adding it (and its min/max counterparts) as aliases in the
 official spec, similarly to how it is described in the whatwg 
compatibility spec: 
https://compat.spec.whatwg.org/#css-media-queries-webkit-device-pixel-ratio

Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/417 using your GitHub 
account