Merge "Add metrics around scheduling failures." into udc-dev am: 07c181c7...

Merge "Add metrics around scheduling failures." into udc-dev am: 07c181c7 am: 24a50870 am: a4341f69

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23089736



Change-Id: I6cb5ab5dff182779befa0805681ede9f89e530e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>