tree 6f8cba4a481eb17b7a40c62145c0e8473e3bb8b6
parent 3c99bb4e5e6157eb085d12807bdc38d7fd60f888
author Chong Zhang <chz@google.com> 1535147373 -0700
committer android-build-team Robot <android-build-team-robot@google.com> 1536621583 +0000

Fix race condition for cas sessions

Change the session to shared_ptr and use atomic_load/store.

Test: POC; CTS MediaCasTest; CTS MediaDrmClearkeyTest#
testClearKeyPlaybackMpeg2ts
bug: 113027383

Change-Id: I75f4cb33a022f28d45918442d64c5c46df2640ef
(cherry picked from commit 7934a8f7ee0988b181980b9e6f24ca7dd357f5e3)