[css-grid] Simplify the interface of GridResolvedPosition
The interface of GridResolvedPosition is full of static methods that are
used only internally, we should not expose them.
Apart from that the resolveXXX() methods return pointers because we wanted
to have a wait to notify the caller that the resolution did not succeed.
Instead of doing that, resolveGridPositionsFromStyle() do always return
a valid GridSpan from now on, meaning that the caller has to ensure that the
resolution does not require running the auto-placement algorithm. A new
class called GridUnresolvedSpan was added for that purpose.
Total comments: 8
Total comments: 2
Total messages: 18 (6 generated)