SurfaceView: Ensure we don't fill unused BLAST Transaction.

If BLAST is enabled and we somehow end up in positionLost or
setParentSpaceRectangle without having called setUseBLASTSyncTransaction
we will end up putting operations in to a Transaction which will never be
applied. This condition should be considered a bug, but it's best to
defend against it. To compensate, rather than checking the global
use BLAST flag, we check if the current draw is actually using
BLAST.

Bug: 152663327
Bug: 152780239
Test: Existing tests pass
Change-Id: I3c05b83400b59be82a339933fc8ef1382d4f0e21