Merge "Return frame period from vsynctracker." into tm-dev am: 4d035493 am:...

Merge "Return frame period from vsynctracker." into tm-dev am: 4d035493 am: fd275d2e am: 4ff178c5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/17699150



Change-Id: Ibe9bbc7d983e52a74a4e79fc5f38cd7d712edc57
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>