DO NOT MERGE Backport of limited jank-tracking metrics

Bug: 19821830

Cherry-pick of ba6adf66d3c44c0aa2fd8a224862ff1901d64300
Cherry-pick of e70c5754d01f2ab0ff47ea3eabaa88aca5ed2a36

Change-Id: Id342fa0ab345f204bec58acf45ce72f6de950cfb
27 files changed