[automerge] Backport missing permission check for querying main activity intent 2p: b319280964

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20218918

Bug: 229256049
Change-Id: Ib5c28885990fbab5dd632454ec336a52651d5e28
Merged-In: Ib233ad754a6c6e3c4e0d0e10ed788ab8e055cccc