Merge "[pm] describe warning dialog behavior in javadoc" into udc-dev am: 416dd2e5 am: 6f8cbf15

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23438327



Change-Id: Ic203f17a32633b4b2475d63c54f1a32edd64e080
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>