Use new stats API in web UI.

lib/sidekiq/web.rb

@@ -34,28 +34,20 @@ module Sidekiq
         end
       end
 
-      def info
-        @info ||= Sidekiq.info
-      end
-
       def processed
-        info[:processed]
+        Sidekiq::Stats.new.processed
       end
 
       def failed
-        info[:failed]
+        Sidekiq::Stats.new.failed
       end
 
       def zcard(name)
         Sidekiq.redis { |conn| conn.zcard(name) }
       end
 
-      def queues
-        @queues ||= Sidekiq.info[:queues_with_sizes]
-      end
-
-      def backlog
-        info[:backlog]
+      def enqueued
+        Sidekiq::Stats.new.enqueued
       end
 
       def retries_with_score(score)
@@ -122,7 +114,7 @@ module Sidekiq
     end
 
     get "/queues" do
-      @queues = queues
+      @queues = Sidekiq::Stats.new.queues
       slim :queues
     end
 

web/views/_summary.slim

@@ -15,5 +15,5 @@ ul.unstyled.summary
     span.count #{number_with_delimiter(zcard('retry'))}
     span.desc  Retries
   li
-    span.count #{number_with_delimiter(backlog)}
-    span.desc  Queue
+    span.count #{number_with_delimiter(enqueued)}
+    span.desc  Enqueued

web/views/queues.slim

@@ -5,7 +5,7 @@ table class="queues table table-hover table-bordered table-striped table-white"
     th Queue
     th Size
     th Actions
-  - queues.each do |(queue, size)|
+  - @queues.each do |queue, size|
     tr
       td
         a href="#{root_path}queues/#{queue}" #{queue}