Merge "Add CTS to verify DownloadManager permission" am: 5301d5448d am: 0608ca0f3a am: 61b81baf33 am: d9b5d7e15e

Original change: https://android-review.googlesource.com/c/platform/cts/+/1429632

Change-Id: Ifa6b53fbfb35d6384c3854e54b23c9b3f7501372
tree: cfc149620550c01fbf49814b0b02b1dc027ea117
  1. tests/