Merge "Add two more logging helper classes. One for SaveEventReported and one...

Merge "Add two more logging helper classes. One for SaveEventReported and one for SessionCommitted. They will be used in the follow-up cr." into udc-dev am: 19fa3e20 am: 87625494

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22324579



Change-Id: If8682602e91afe0cca5000c9579a1a7432a0b5a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>