style: Expose logical props in computed style.
style: Expose logical props in computed style.

Bug: 1116638
Reviewed-by: xidorn
Differential Revision: https://phabricator.services.mozilla.com/D1862

nnethercote/servo,dati91/servo,SimonSapin/servo,cbrewster/servo,ConnorGBrewster/servo,szeged/servo,sadmansk/servo,ConnorGBrewster/servo,jimberlage/servo,dati91/servo,pyfisch/servo,jimberlage/servo,DominoTree/servo,jimberlage/servo,SimonSapin/servo,pyfisch/servo,paulrouget/servo,notriddle/servo,DominoTree/servo,szeged/servo,DominoTree/servo,SimonSapin/servo,saneyuki/servo,notriddle/servo,KiChjang/servo,paulrouget/servo,splav/servo,KiChjang/servo,peterjoel/servo,jimberlage/servo,sadmansk/servo,larsbergstrom/servo,emilio/servo,emilio/servo,dati91/servo,notriddle/servo,dati91/servo,KiChjang/servo,peterjoel/servo,emilio/servo,paulrouget/servo,sadmansk/servo,paulrouget/servo,szeged/servo,sadmansk/servo,cbrewster/servo,ConnorGBrewster/servo,pyfisch/servo,ConnorGBrewster/servo,nnethercote/servo,sadmansk/servo,jimberlage/servo,nnethercote/servo,pyfisch/servo,larsbergstrom/servo,saneyuki/servo,sadmansk/servo,jimberlage/servo,paulrouget/servo,szeged/servo,SimonSapin/servo,peterjoel/servo,saneyuki/servo,saneyuki/servo,saneyuki/servo,KiChjang/servo,notriddle/servo,ConnorGBrewster/servo,larsbergstrom/servo,emilio/servo,paulrouget/servo,szeged/servo,splav/servo,KiChjang/servo,paulrouget/servo,larsbergstrom/servo,SimonSapin/servo,emilio/servo,notriddle/servo,larsbergstrom/servo,peterjoel/servo,szeged/servo,peterjoel/servo,dati91/servo,saneyuki/servo,szeged/servo,cbrewster/servo,jimberlage/servo,nnethercote/servo,szeged/servo,SimonSapin/servo,cbrewster/servo,ConnorGBrewster/servo,pyfisch/servo,SimonSapin/servo,emilio/servo,DominoTree/servo,pyfisch/servo,sadmansk/servo,dati91/servo,sadmansk/servo,paulrouget/servo,dati91/servo,SimonSapin/servo,nnethercote/servo,jimberlage/servo,cbrewster/servo,KiChjang/servo,splav/servo,cbrewster/servo,DominoTree/servo,notriddle/servo,paulrouget/servo,cbrewster/servo,nnethercote/servo,larsbergstrom/servo,cbrewster/servo,splav/servo,pyfisch/servo,DominoTree/servo,saneyuki/servo,nnethercote/servo,peterjoel/servo,peterjoel/servo,larsbergstrom/servo,emilio/servo,emilio/servo,splav/servo,szeged/servo,saneyuki/servo,notriddle/servo,emilio/servo,KiChjang/servo,DominoTree/servo,pyfisch/servo,DominoTree/servo,KiChjang/servo,paulrouget/servo,DominoTree/servo,splav/servo,KiChjang/servo,dati91/servo,peterjoel/servo,ConnorGBrewster/servo,peterjoel/servo,splav/servo,splav/servo,pyfisch/servo,larsbergstrom/servo,jimberlage/servo,nnethercote/servo,szeged/servo,splav/servo,larsbergstrom/servo,splav/servo,notriddle/servo,KiChjang/servo,ConnorGBrewster/servo,peterjoel/servo,larsbergstrom/servo,DominoTree/servo,emilio/servo,saneyuki/servo,notriddle/servo,nnethercote/servo,notriddle/servo,pyfisch/servo,nnethercote/servo,saneyuki/servo