Prune unnecessary stuff in ensureScrollChange.
Prune unnecessary stuff in ensureScrollChange.

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