Set SkDAARecord to empty type if the scan converter returns early

Otherwise,

	./out/Debug/dm --config t8888 -m bug583299

will crash at SkASSERT(record->fType != SkDAARecord::Type::kToBeComputed)

Bug: skia:
Change-Id: Ie93221bd6ea7ab9bc9f3d79fd7fe02b315e6a089
Reviewed-on: https://skia-review.googlesource.com/111680
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
3 files changed