Chong Zhang 4aabc95234 cas: fix UAF in descrambler
Change the plugin holder in both CasImpl and DescramblerImpl
to shared_ptr, and use atomic store/load for read/write.

bug: 73172817
Test:CTS MediaCasTest, VTS VtsHalCasV1_0Target, poc in bug
Change-Id: I3f1472d3b9d8d3dc74168c07325c5c319a96807d
2018-03-23 18:50:38 -07:00
2018-03-12 19:18:52 +00:00
2018-03-23 18:50:38 -07:00
2017-05-02 16:45:27 -07:00
2017-11-28 14:22:43 -08:00
2016-08-30 11:28:36 -07:00
2016-08-30 11:28:36 -07:00
2017-06-12 13:20:12 -07:00
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