Re: Mutating the frame tree shape from reflow code.

You would need to design a completely different approach to handle vertical
and horizontal breaking. I agree the current approach has severe problems
but even just designing something significantly better is not easy ... and
actually switching Gecko to it would be a mountain of work.

Maybe you should get really good break-handling into Servo layout and then
import Servo layout into Gecko a la Stylo ("Layo"?).

Rob
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