Got the media tree converted to new tree structure.

src/Umbraco.Web/Trees/MediaTreeController.cs

@@ -0,0 +1,65 @@
+using System.Linq;
+using System.Net.Http.Formatting;
+using Umbraco.Core;
+using Umbraco.Core.Models;
+using Umbraco.Core.Services;
+using Umbraco.Web.Trees.Menu;
+using umbraco.BusinessLogic.Actions;
+
+namespace Umbraco.Web.Trees
+{
+    [Tree(Constants.Applications.Media, Constants.Trees.Media, "Media")]
+    public class MediaTreeController : ContentTreeControllerBase
+    {
+        protected override int RecycleBinId
+        {
+            get { return Constants.System.RecycleBinContent; }
+        }
+
+        protected override bool RecycleBinSmells
+        {
+            get { return Services.MediaService.RecycleBinSmells(); }
+        }
+
+        protected override TreeNodeCollection PerformGetTreeNodes(string id, FormDataCollection queryStrings)
+        {
+            var entities = GetChildEntities(id);
+
+            var nodes = new TreeNodeCollection();            
+
+            nodes.AddRange(
+                entities.Cast<UmbracoEntity>()
+                        .Select(e => CreateTreeNode(e.Id.ToInvariantString(), queryStrings, e.Name, e.ContentTypeIcon, e.HasChildren)));
+
+            return nodes;
+
+        }
+
+        protected override MenuItemCollection PerformGetMenuForNode(string id, FormDataCollection queryStrings)
+        {
+            var menu = new MenuItemCollection();
+
+            if (id == Constants.System.Root.ToInvariantString())
+            {
+                // default actions for all users               
+                menu.AddMenuItem<ActionNew>();
+                menu.AddMenuItem<ActionSort>(true);
+                menu.AddMenuItem<RefreshNodeMenuItem, ActionRefresh>(true);
+                return menu;
+            }
+
+            //return a normal node menu:
+            menu.AddMenuItem<ActionNew>();
+            menu.AddMenuItem<ActionMove>();
+            menu.AddMenuItem<ActionDelete>();
+            menu.AddMenuItem<ActionSort>();
+            menu.AddMenuItem<ActionRefresh>(true);
+            return menu;
+        }
+
+        protected override UmbracoObjectTypes UmbracoObjectType
+        {
+            get { return UmbracoObjectTypes.Media; }
+        }
+    }
+}