Reorganize header manipulation that occurs before sending an HTTP request so we can provide the full set of headers while creating a request.
Reorganize header manipulation that occurs before sending an HTTP request so we can provide the full set of headers while creating a request.

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