I've identified a few more DRM and playback-related IOKit properties that are needed, now that more users are running this sandbox.
This patch revised the Plugin sandbox to permit a few more properties for these uses.
Actually, these were needed by WebProcess for dealing with other hardware configurations (Nvidia). I've updated the sandbox to allow access.
Created attachment 312517 [details]
Comment on attachment 312517 [details]
Clearing flags on attachment: 312517
Committed r218109: <http://trac.webkit.org/changeset/218109>
All reviewed patches have been landed. Closing bug.