Set copies to one when saving to PDF.

One can save only one copy to PDF. Showing more that one copy when saving
to PDF enven in a disabled input box is confusing to the user. We now set
the copies to one when the PDF printer is selected.

bug:17631303

Change-Id: Ia04d144efc899e7f3836c19349d9c87f3ae8f0f0
1 file changed