Merge "CCodecBufferChannel: do not clear tracked frames at flush" into udc-dev am: 4129c644 am: a1d62025

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23040499



Change-Id: Ia67ef86f8fe3f5aa4115bf634d61956df03c37e8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>