Demo not working in Chrome

[cvan]

I could be missing something, but the demo doesn't work in Chrome stable (Version 35.0.1916.153) nor Chrome Canary (Version 38.0.2093.3 canary [64-bit]).

Since Chrome doesn't fire gamepadconnected or gamepaddisconnected events like Firefox does, it doesn't look like we initialise a gamepad.

At least for demo purposes, could we poll using requestAnimationFrame to detect when a game pad is connected, and then initialise the demo?

[cvan]

Hmm, this does seem to work for me. Not sure what was going on.