These are standard columns for openable URIs. (See
CATEGORY_OPENABLE.) If possible providers that have openable URIs
should support these columns. To find the content type of a URI use
getType(android.net.Uri) as normal.
|String||DISPLAY_NAME||The human-friendly name of file.|
|String||SIZE||The number of bytes in the file identified by the openable URI.|
The human-friendly name of file. If this is not provided then the name should default to the the last segment of the file's URI.
The number of bytes in the file identified by the openable URI. Null if unknown.