Merge "Reference MediaDrmMetrics as shared_ptr" am: 702417d797 am: b3abf1bb82

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2421999

Change-Id: I0535cf9ae09a0af97dd629a707e1029fa8ccd084
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>