Get rid of all wrappers and use navigator.mediaDevices.getUserMedia, since all
supported platforms have it by now.
Also use the unprefixed versions of WebRTC APIs.
ref(gum): try to reduce complexity of obtainAudioAndVideoPermissions (#707)
* ref(gum): try to reduce complexity of obtainAudioAndVideoPermissions
Even though I walk through the valley of the shadow of death
I will fear no evil... Reduce indenting and repeated calls to
getting desktop streams by creating a promise chain.
* squash: use arrow func
* squash: move constructor support to helper
* squash: put ff into mediastream constructor check
* squash: ff support media stream constructor
MDN states its been supported since 44. ESR is currently
52.
* squash: rename dsoptions, constant defaults
* squash: move comment about missing tracks error handling
* squash: wrap getUserMediaWithConstraints in promise
* squash: split up av funcs
* squash: hey, some tests...are better than no tests?
Saúl Ibarra Corretgé
virtuacoplenny