adcb697826
First, in the download manager public API, I'm changing COLUMN_REQUESTED_TIMESTAMP to COLUMN_LAST_MODIFIED_TIMESTAMP, a field that already exists in the download manager. Upon inspection of existing users of this field, it looks like there are some good use cases -- for instance, looking at when a download completed. And if I'm exposing that timestamp, there's no need to also expose the requested timestamp. Second, this change includes support for file URI destinations: * add DESTINATION_FILE_URI for use by the DownloadManager wrapper * make DownloadManager use it appropriately The backend support is in a separate change (since it's in a separate project). Also fixing a bug with file URI construction when DownloadManager fills in COLUMN_LOCAL_URI. Change-Id: I5bb93a222cd23215c2a03ed9f68d7f140454f7f2