Merge "Insert downloaded file to MediaStore db only after Download is complete" into rvc-dev am: 805096693a am: 173b599c83 am: 2ab0ac6ec1

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/providers/DownloadProvider/+/11759899

Change-Id: I3b02888a66c4e13bcc82f66e29ef212bddc399c2