svtools: survive swapout/in of graphic with embedded pdf

Use case is to insert a pdf file in Impress, then choose Save from the
context menu of the image. On one hand, for some reason only bitmap
images can be saved, so add an exception for the graphic-with-pdf case.
SVG is not affected, as it counts as bitmap with its PNG replacement
image, it seems.

On the other hand, copying the GraphicObject around triggers
swapout/swapin of the graphic, and there the original pdf data was lost,
fix that.

Change-Id: I8b4b67cd951e39b0250a101766f487ddb1088cab
Reviewed-on: https://gerrit.libreoffice.org/26739
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

0 files changed, 0 insertions, 0 deletions