Merge "Add scheduled job high water mark metric." into udc-dev am: 1588d4ac...

Merge "Add scheduled job high water mark metric." into udc-dev am: 1588d4ac am: 6e644c2c am: 13c82cc3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23036898



Change-Id: Iae2ccb607cbb30a1861b716c7d6cc6fd50902e18
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>