Update API impl of allowScanningByMediaScanner/setVisibleInDownloadsUi.
These APIs javadocs have been updated earlier to indicate how they behave
on Q, now updating impl of those APIs to match with javadocs.
Bug: 131693243
Test: manual
Test: atest DownloadProviderTests
Test: atest cts/tests/app/src/android/app/cts/DownloadManagerTest.java
Test: atest cts/tests/app/DownloadManagerLegacyTest/src/android/app/cts/DownloadManagerLegacyTest.java
Test: atest cts/tests/app/DownloadManagerApi28Test/src/android/app/cts/DownloadManagerApi28Test.java
Change-Id: I8fb43806b27fefaffc510fde5424b48e3ff56d20
3 files changed