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: f1a4d8ff am: 3d01fb4f

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



Change-Id: Ida3f1b65060b2965178f05494f8aaf200c5e2eae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>