function td(){this.Init()}v("AdfGeckoNavigationHistoryAgent",td);z.l(td,ed);td.da=function(){this.uA=300};v("AdfGeckoNavigationHistoryAgent.InitClass",td.da);td.prototype.Zd=function(a){td.f.Zd.call(this,a);this.Id=this.Nc().setInterval(td.tk,td.uA)};z.a("AdfGeckoNavigationHistoryAgent.prototype.StartTrackingUriImpl",{Zd:td.prototype.Zd});td.prototype.Bb=function(){this.Id&&this.Nc().clearInterval(this.Id)};z.a("AdfGeckoNavigationHistoryAgent.prototype.dispose",{Bb:td.prototype.Bb});td.tk=function(){ed.O().so()};