Merge "move MediaCodec metrics processing to looper thread" into sc-dev am: d9a5da7b42 am: 35874fce0c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/20612019

Change-Id: Ib28ce0fd08474ce745dc1314f122817fbc83862f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>