Merge "Insert downloaded file to MediaStore db only after Download is complete" into rvc-dev am: 805096693a am: 173b599c83 am: 2ab0ac6ec1 am: 653307b41a

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

Change-Id: I4f9082d87deed54302280aea74b157a174fadb7f