aframe: daydream-controls doesn't work

daydream-controls doesn’t work:

<a-entity daydream-controls>

Looks like isControllerPresent() is returning false in tracked-controls.js

Daydream controller is confirmed to be working on webvr.info/samples

This happens with both Chrome Canary and regular Chrome. I think this may have been due to the controller update I received last week since nothing in the controls seems to have changed.

• A-Frame Version: Master
• Platform / Device: Android Daydream running Chrome and Canary
• Reproducible Code Snippet or URL:

Viewable example: https://iridescent-team.glitch.me

Edit here: glitch.com/edit/#!/join/6963d888-4dfa-4b51-93ce-ba100c9fb78b

cc @machenmusik @cvan for a look-see.