### UPDATED See HERE ###
Been chasing this one around trying to do it "natively" but eventually found a solution
by slingshotting files to google drive via an https web server.
I don't recommend file sizes greater than 5mb
Tested a range of filetypes, everything seems to work that i have tried
More details here
http://ai2.metricrat.co.uk/save-any-file-to-google-drive