Use inheritance_parent to control style_sharing.
Use inheritance_parent to control style_sharing.

Using traversal_parent here is wrong.

MozReview-Commit-ID: GHCIjkgx4VE

pyfisch/servo,rnestler/servo,sadmansk/servo,sadmansk/servo,dsandeephegde/servo,emilio/servo,anthgur/servo,saneyuki/servo,notriddle/servo,peterjoel/servo,paulrouget/servo,mbrubeck/servo,KiChjang/servo,upsuper/servo,mbrubeck/servo,szeged/servo,emilio/servo,KiChjang/servo,eddyb/servo,szeged/servo,DominoTree/servo,anthgur/servo,ConnorGBrewster/servo,thiagopnts/servo,CJ8664/servo,sadmansk/servo,SimonSapin/servo,SimonSapin/servo,paulrouget/servo,SimonSapin/servo,rnestler/servo,KiChjang/servo,DominoTree/servo,DominoTree/servo,anthgur/servo,CJ8664/servo,splav/servo,nnethercote/servo,fiji-flo/servo,splav/servo,avadacatavra/servo,rnestler/servo,szeged/servo,dsandeephegde/servo,dati91/servo,anthgur/servo,pyfisch/servo,DominoTree/servo,anthgur/servo,saneyuki/servo,rnestler/servo,dati91/servo,canaltinova/servo,saneyuki/servo,cbrewster/servo,KiChjang/servo,dsandeephegde/servo,avadacatavra/servo,splav/servo,saneyuki/servo,ConnorGBrewster/servo,eddyb/servo,CJ8664/servo,paulrouget/servo,mbrubeck/servo,splav/servo,nnethercote/servo,szeged/servo,ConnorGBrewster/servo,cbrewster/servo,thiagopnts/servo,upsuper/servo,saneyuki/servo,eddyb/servo,notriddle/servo,szeged/servo,jimberlage/servo,SimonSapin/servo,fiji-flo/servo,pyfisch/servo,mattnenterprise/servo,dsandeephegde/servo,dati91/servo,nnethercote/servo,larsbergstrom/servo,thiagopnts/servo,nnethercote/servo,pyfisch/servo,cbrewster/servo,sadmansk/servo,mbrubeck/servo,nnethercote/servo,szeged/servo,rnestler/servo,CJ8664/servo,jimberlage/servo,emilio/servo,notriddle/servo,eddyb/servo,splav/servo,szeged/servo,notriddle/servo,anthgur/servo,fiji-flo/servo,nnethercote/servo,emilio/servo,ConnorGBrewster/servo,upsuper/servo,fiji-flo/servo,larsbergstrom/servo,peterjoel/servo,DominoTree/servo,KiChjang/servo,dsandeephegde/servo,szeged/servo,mattnenterprise/servo,larsbergstrom/servo,mattnenterprise/servo,rnestler/servo,peterjoel/servo,larsbergstrom/servo,thiagopnts/servo,splav/servo,paulrouget/servo,canaltinova/servo,sadmansk/servo,dati91/servo,larsbergstrom/servo,szeged/servo,canaltinova/servo,canaltinova/servo,avadacatavra/servo,cbrewster/servo,rnestler/servo,jimberlage/servo,SimonSapin/servo,thiagopnts/servo,jimberlage/servo,canaltinova/servo,DominoTree/servo,KiChjang/servo,thiagopnts/servo,sadmansk/servo,peterjoel/servo,szeged/servo,mbrubeck/servo,mbrubeck/servo,upsuper/servo,saneyuki/servo,peterjoel/servo,ConnorGBrewster/servo,upsuper/servo,emilio/servo,dati91/servo,cbrewster/servo,rnestler/servo,pyfisch/servo,saneyuki/servo,CJ8664/servo,KiChjang/servo,KiChjang/servo,larsbergstrom/servo,SimonSapin/servo,saneyuki/servo,fiji-flo/servo,mattnenterprise/servo,pyfisch/servo,dati91/servo,larsbergstrom/servo,KiChjang/servo,eddyb/servo,ConnorGBrewster/servo,thiagopnts/servo,fiji-flo/servo,KiChjang/servo,dsandeephegde/servo,mbrubeck/servo,larsbergstrom/servo,splav/servo,jimberlage/servo,ConnorGBrewster/servo,ConnorGBrewster/servo,dati91/servo,paulrouget/servo,jimberlage/servo,avadacatavra/servo,saneyuki/servo,splav/servo,nnethercote/servo,nnethercote/servo,nnethercote/servo,notriddle/servo,avadacatavra/servo,SimonSapin/servo,mattnenterprise/servo,jimberlage/servo,mattnenterprise/servo,emilio/servo,DominoTree/servo,avadacatavra/servo,eddyb/servo,fiji-flo/servo,canaltinova/servo,notriddle/servo,jimberlage/servo,avadacatavra/servo,CJ8664/servo,pyfisch/servo,pyfisch/servo,cbrewster/servo,emilio/servo,CJ8664/servo,anthgur/servo,mbrubeck/servo,splav/servo,cbrewster/servo,anthgur/servo,larsbergstrom/servo,upsuper/servo,emilio/servo,paulrouget/servo,peterjoel/servo,upsuper/servo,fiji-flo/servo,peterjoel/servo,mattnenterprise/servo,notriddle/servo,emilio/servo,dsandeephegde/servo,mattnenterprise/servo,DominoTree/servo,dati91/servo,notriddle/servo,eddyb/servo,cbrewster/servo,paulrouget/servo,sadmansk/servo,nnethercote/servo,notriddle/servo,thiagopnts/servo,eddyb/servo,sadmansk/servo,peterjoel/servo,pyfisch/servo,DominoTree/servo,CJ8664/servo,DominoTree/servo,splav/servo,larsbergstrom/servo,notriddle/servo,paulrouget/servo,paulrouget/servo,SimonSapin/servo,canaltinova/servo,jimberlage/servo,canaltinova/servo,saneyuki/servo,peterjoel/servo,paulrouget/servo,emilio/servo,upsuper/servo,dsandeephegde/servo,peterjoel/servo,pyfisch/servo,avadacatavra/servo