[EME] Spec now uses promises

I just committed a large
implements promises per bug

The examples<https://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/encrypted-media.html#examples>are
also updated*, and that is possibly the most interesting change.
MediaKeys and MediaKeySession creation is more complex, especially when
supporting more than one session in response to needkey events  as in example
Since there may not be a MediaKeys object, initData must be queued. Also,
we need an additional variable to determine whether there is a pending
MediaKeys creation because video.mediaKeys is asynchronously set sometime
after MediaKeys.create() asynchronously completes.

There will be more changes soon as I resolve bugs that were dependent on


* Please let me know if there are errors or better solutions.

Received on Monday, 14 April 2014 22:54:14 UTC