Reload content scripts: minor refactoring.
Reload content scripts: minor refactoring.

poacher2k/vimium,Robinson10240/vimium,elegantwww/vimium,elegantwww/vimium,willsALMANJ/vimium,Aleroniponi/vimium,bkudria/vimium,elderbas/vimium,PrestanceDesign/vimium,borgified/vimium,zhangmin510/vimium,PrestanceDesign/vimium,PickRelated/vimium,Lw-Cui/vimium,wildeyes/vimium,justalittlenoob/vimium,gdh1995/vimium,cyrixhero/vimium,philc/vimium,hhsue/vimium,bkudria/vimium,poacher2k/vimium,philc/vimium,willsALMANJ/vimium,smblott-github/vimium,Lw-Cui/vimium,decaffeinate-examples/vimium,douglas-larocca/vimium,cyrixhero/vimium,csmalin/vimium,philc/vimium,mrmr1993/vimium,hhsue/vimium,PickRelated/vimium,elegantwww/vimium,wildeyes/vimium,zhangmin510/vimium,csmalin/vimium,douglas-larocca/vimium,Robinson10240/vimium,tuchangwei/vimium,PrestanceDesign/vimium,justalittlenoob/vimium,VPashkov/vimium,PickRelated/vimium,cyrixhero/vimium,wildeyes/vimium,VPashkov/vimium,tuchangwei/vimium,Aleroniponi/vimium,Aleroniponi/vimium,zhangmin510/vimium,hhsue/vimium,decaffeinate-examples/vimium,borgified/vimium,gdh1995/vimium,Robinson10240/vimium,justalittlenoob/vimium,poacher2k/vimium,bkudria/vimium,dimatter/vimium,mrmr1993/vimium,mrmr1993/vimium,Lw-Cui/vimium,dimatter/vimium,elderbas/vimium,smblott-github/vimium,csmalin/vimium,douglas-larocca/vimium,tuchangwei/vimium,borgified/vimium,decaffeinate-examples/vimium,VPashkov/vimium,smblott-github/vimium,gdh1995/vimium,willsALMANJ/vimium,elderbas/vimium,dimatter/vimium