[encrypted-media] Explicitly define the initial state of the `keyStatuses` attribute

ddorwin has just created a new issue for 
https://github.com/w3c/encrypted-media:

== Explicitly define the initial state of the `keyStatuses` attribute 
==
Step 2.4 of the `createSession()` algorithm currently says:
>Let the keyStatuses attribute be empty.

However, there is no explicit definition of what that means or how to 
construct a MediaKeyStatusMap.

For consistency, we should probably use something like step 2. For 
example
>Let session be a new MediaKeyStatusMap object, and initialize it as 
follows:
  1. ...

See https://github.com/w3c/encrypted-media/issues/72

Received on Monday, 13 July 2015 23:55:43 UTC