DRM Overview for F2F discussion

Hi all,

In preparation for our conversation with David Dorwin from the Chrome EME
team, they have prepared an overview of DRM systems gto serve as a
background for discussion. It includes a description of some aspects of
these systems that have not previously been well-described:


https://docs.google.com/document/d/1-v5s570vnBYUYaUdguiPG1ePyrr4Ra8LC-IHThpZGrM/edit

My deepest thanks to David for taking the time both to help produce this
document and participate in our discussions next week.

Regards