Merge "[DO NOT MERGE] Make screenshot error notification PendingIntent immutable" into rvc-dev am: 9c62f07486 am: db318cc890

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13519315

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ibe5b5c194df5dfe3615335cb83b9272272848af3