ok, add via_skp

This is the same sort of thing as DM's serialize via.
It draws into a picture, serializes that, deserializes that,
and then draws that picture into the destination.

Change-Id: Ib58748786bc01fd8a0cb9355a2fd334311c361bf
Reviewed-on: https://skia-review.googlesource.com/49902
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
1 file changed