More Sync in More Places

Some operations weren't being done in sync transactions. This adds
sync in a couple more places where it makes sense (particularly
for display changes which aren't relevant until display changes are
part of transitions).

This also re-orders sync update on parent-change since onParentChanged
sometimes does work and needs to have an accurate transaction to put
it on.

Bug: 179270750
Test: existing tests pass, system behavior doesn't change.
Change-Id: I6eb0b541a88805ab7459175e163563ed869cdc8e