Merge "MediaCodec: Implement onMetricsFlushed callback" into main am: 4050d40172 am: a63945d0c2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3343580

Change-Id: I6cacab875b7f4a120bf30cb74d890997b38c0ad5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>