reduce sync db access

MediaBrowser.Controller/Sync/ISyncManager.cs

@@ -151,7 +151,7 @@ namespace MediaBrowser.Controller.Sync
         /// </summary>
         /// <param name="query">The query.</param>
         /// <returns>QueryResult&lt;System.String&gt;.</returns>
-        QueryResult<SyncedItemProgress> GetSyncedItemProgresses(SyncJobItemQuery query);
+        Dictionary<string, SyncedItemProgress> GetSyncedItemProgresses(SyncJobItemQuery query);
 
         /// <summary>
         /// Reports the synchronize job item transfer beginning.

MediaBrowser.Controller/Sync/ISyncRepository.cs

@@ -1,4 +1,5 @@
-using MediaBrowser.Model.Querying;
+using System.Collections.Generic;
+using MediaBrowser.Model.Querying;
 using MediaBrowser.Model.Sync;
 using System.Threading.Tasks;
 
@@ -74,6 +75,6 @@ namespace MediaBrowser.Controller.Sync
         /// </summary>
         /// <param name="query">The query.</param>
         /// <returns>QueryResult&lt;System.String&gt;.</returns>
-        QueryResult<SyncedItemProgress> GetSyncedItemProgresses(SyncJobItemQuery query);
+        Dictionary<string, SyncedItemProgress> GetSyncedItemProgresses(SyncJobItemQuery query);
     }
 }

MediaBrowser.Controller/Sync/SyncedItemProgress.cs

@@ -4,7 +4,7 @@ namespace MediaBrowser.Controller.Sync
 {
     public class SyncedItemProgress
     {
-        public string ItemId { get; set; }
+        public double Progress { get; set; }
         public SyncJobItemStatus Status { get; set; }
     }
 }