[automerger skipped] Merge "[DO NOT MERGE] Make GlobalScreenshot...

[automerger skipped] Merge "[DO NOT MERGE] Make GlobalScreenshot PendingIntents immutable" into pi-dev am: be1f0f28 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12773074

Change-Id: I0050f345b8a175d5ecb62f96fdc1b04f9f90d138