Timeout expires when importing very large clips
Submitted by Andrey Gelman
Assigned to Andrey Gelman
_scheduleTimeout() method should add a timeout that depends on clip file size, rather than a constant value.
Otherwise, importing large clips (like a 3 GB home video movie) fails as it takes a long time to read them from a disk indeed.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=641679