d5aa1e41d3
I added a few error codes for out-of-resource type conditions. I added comments explain which functions may be called simultaneously. Basically, info only functions, like getDeviceId, may be called anytime after initialization. Functions that have a session parameter may be called at the same time as other functions for a different session, but not for the same session. Functions that create or delete sessions may not be called as the same time as any each other, or at the same time as any session functions. The CDM is required to honor these conventions. If the OEM can only decrypt for one session at a time, it is the OEM's responsibility to hold a lock. Change-Id: If4b11afd70b5b2e67d78802ea0057fb25271ae90