[automerger skipped] [DO NOT MERGE] Make screenshot error notification PendingIntent immutable am: 1eecc874b6 am: de813c45dd am: 09d2e03de5 -s ours

am skip reason: subject contains skip directive

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I99457f65f21a0509f9ec23a492c9cebe16a963e7