[Bug 35222] Inaccurate Copy Progress Dialog during file transfer to mass storage device

[Lakin Wecker]

Public bug report changed:
https://launchpad.net/malone/bugs/35222

Comment:
>From IRC:  Tomasz is not unmounting the disks before pulling them out.
Of course, this is what causes the data loss.    In my mind there are
two bugs here:

1) if someone pulls out a removable device without unmounting it, we
should show a warning dialog telling them that they risk data loss.

2) the dialog which is shown while ejecting the removable devices should
be present from the moment they start the copying until it is
finished...  With an option to minimize the progress to a dialog.