Make sure the ImageCapture API is not leaking information (camera availability)
Part of the ImageCapture API landed (https://bugzilla.mozilla.org/show_bug.cgi?id=916643). This may leak camera availability in the client side. Marking this for ff45-esr for closer inspection as it is still disabled by pref in ESR 38 (dom.imagecapture.enabled
is set to false
).