Merge "Merge "Merge "Merge "Update samples for new DownloadRequest API" am: 10f4fb6469" into stage-aosp-master am: 936cf912c4" into oc-dev-plus-aosp am: 083d0e73d6" into oc-dr1-dev-plus-aosp
am: 9f77e62ecb

Change-Id: I218448b8046e85bcc3dffc324603b13bea13418e