[encrypted-media] Clarify steps for destruction of keys / licenses

mwatson2 has just created a new issue for 
https://github.com/w3c/encrypted-media:

== Clarify steps for destruction of keys / licenses ==
Discussion on #85, (see, in particular, [this 
comment](https://github.com/w3c/encrypted-media/issues/85#issuecomment-211496666)),
 suggests the specification could describe the steps for destruction 
of keys / licenses more clearly.

I suggest we:
(1) extract the steps for destruction of keys / licenses from the 
_Session close_ algorithm into a new _Destroy keys / licenses_ 
algorithm.
(2) refer to this algorithm from the `persistent-usage-record` session
 type definition (instead of the current text which duplicates the 
requirements in prose).

These changes would not add or remove any requirements, but would make
 the existing requirements easier to understand.

Please view or discuss this issue at 
https://github.com/w3c/encrypted-media/issues/171 using your GitHub 
account

Received on Monday, 25 April 2016 20:07:55 UTC