[ http://go/wvgerrit/50341 ]
The shared_ptr implementation was taken from a google3 implementation.
Updates to the reference counter needed to be atomic and were
platform dependent in the original code. These were not carried
over to this codebase. Race conditions between calls to decrypt and
the periodic timer, led to incorrect reference count values.
CdmSession objects were then destructed while references to
them still existed. Segfaults occurred when they were referenced.
Bug: 79431096
Test: WV unit/integration tests, GTS GtsMediaTestCases tests and
24 hours of continuous Netflix playback.
Change-Id: I6008ddba869efcc58972e5ea8644a204f91410ab
dcab2b1355