[automerger skipped] Merge "Unexport all PackageInstaller receivers" into...

[automerger skipped] Merge "Unexport all PackageInstaller receivers" into sc-qpr1-dev am: d991ba31 am: 90f055a0 -s ours

am skip reason: Merged-In I782fc21c848831a2a4aeab736cd47ad45781b290 with SHA-1 fef9b375 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15522458

Change-Id: Iaf3af97469e15b240a9f36e5d18ce62c150e1104