if source document == selected paper size, do not scale

If the source document dimensions is the same as the selected paper
size, do not scale the source to fit inside the printable area of the
selected paper size. Fix jagged print issue.

Test: Print a letter sized PDF to a printer with Letter paper loaded.
Confirm printout does not have added margins.
Signed-off-by: Kurtis Schlepp <mopriadevteam@gmail.com>
Change-Id: I28290299443e32659fd63e037b0371c2b80cc67c
10 files changed