Tests MediaStreamTrack callbacks.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


FAIL webkitGetUserMedia threw exception :TypeError: navigator.webkitGetUserMedia is not a function. (In 'navigator.webkitGetUserMedia(constraints, callback, error)', 'navigator.webkitGetUserMedia' is undefined)
PASS successfullyParsed is true

TEST COMPLETE