Merge "Limit the number of concurrently snoozed notifications" into sc-v2-dev...

Merge "Limit the number of concurrently snoozed notifications" into sc-v2-dev am: 60bd9a5e am: 52c86d02 am: 55649886 am: ab77f169 am: fbb9a98c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19205940



Change-Id: Id62aa6daa7325143152a253a22664c56e28d4624
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>