libmediatranscoding: handle death recipient cookie ownership differently am:...

libmediatranscoding: handle death recipient cookie ownership differently am: 686987b9 am: 149b60fa am: 9d45cc0f am: bda92f10

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/27162867



Change-Id: I09c3398e43daafeccfcb4d2f72648ecdb2f1ac5a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>