switch fragments to new flow types
switch fragments to new flow types

Reviewed By: mjmahone

Differential Revision: D4961141

fbshipit-source-id: abd128d0ae2dea15fccb145823a9c52734ece944

benjaminogles/relay,apalm/relay,facebook/relay,rosskevin/relay,xuorig/relay,wincent/relay,yungsters/relay,iamchenxin/relay,chentsulin/relay,wincent/relay,kassens/relay,apalm/relay,josephsavona/relay,facebook/relay,voideanvalue/relay,freiksenet/relay,xuorig/relay,chirag04/relay,voideanvalue/relay,benjaminogles/relay,facebook/relay,chentsulin/relay,freiksenet/relay,chentsulin/relay,freiksenet/relay,iamchenxin/relay,kassens/relay,iamchenxin/relay,cpojer/relay,voideanvalue/relay,facebook/relay,apalm/relay,iamchenxin/relay,yungsters/relay,wincent/relay,kassens/relay,cpojer/relay,kassens/relay,atxwebs/relay,dbslone/relay,atxwebs/relay,atxwebs/relay,cpojer/relay,yungsters/relay,zpao/relay,xuorig/relay,facebook/relay,wincent/relay,wincent/relay,zpao/relay,xuorig/relay,josephsavona/relay,dbslone/relay,kassens/relay,voideanvalue/relay,chirag04/relay,chirag04/relay,voideanvalue/relay,xuorig/relay,cpojer/relay,facebook/relay,xuorig/relay,josephsavona/relay,rosskevin/relay,benjaminogles/relay,zpao/relay,wincent/relay,atxwebs/relay,kassens/relay,voideanvalue/relay