Merge "Add CTS to verify DownloadManager permission" am: 5301d5448d

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

Change-Id: I8c99bf1088d835e9fffad1da97c5c437973024af
tree: cfc149620550c01fbf49814b0b02b1dc027ea117
  1. tests/