Merge "Add test content provider to mock uri mime types" into udc-dev am: 064f8f85e0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/IntentResolver/+/23063304

Change-Id: Ia8ab17bdd20f62f75f960c7397cef875095a5273
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>