Merge "[layertracegenerator] stream layer trace to file" into udc-dev am: 30cdab74

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22090398



Change-Id: I7dd4344a0c5134fe57f7654b46403677947b6f1e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>