Merge "Trim strings added to persistent snoozed notification storage." into...

Merge "Trim strings added to persistent snoozed notification storage." into sc-qpr1-dev am: 3a59f424 am: acb896ff am: fdefdbe2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21740199



Change-Id: Idee828a7645acfdc96d39ba422266461f7973aa4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>