Merge "Merge "Merge "Update samples for new DownloadRequest API" am: 10f4fb6469 am: 133678b081" into oc-dev-plus-aosp am: 4bc69954fb" into oc-dr1-dev-plus-aosp
am: c5d9ee2863

Change-Id: I6f82cfbd79cc79a7c134de7e4144973ea91303f5