Add a new flag to represent a user-initiated job notification. am: 9de342ab am: 5107e09b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21516858



Change-Id: Iafe1f70d9569518690e8f2b1b787d1197621f109
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>