Merge "Allow releasing ContentProvider from sdk sandbox." into udc-dev am: e9787e2d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22130665



Change-Id: Ib8d1007abc676560a2d238e81c1fa40c08af88cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>