Loading high resolution icons for first 3 items in a folder

> Sometimes a folder gets rearranged, without updating the model,
   like when an app in uninstalled. In that case, we need to update
   the icons for folder items, which were previously hidden

Bug: 22813360
Change-Id: I99754911c969bf2153efb2948c226c1c69219b88

src/com/android/launcher3/Folder.java

@@ -1389,7 +1389,7 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
     }
 
     // Compares item position based on rank and position giving priority to the rank.
-    private static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() {
+    public static final Comparator<ItemInfo> ITEM_POS_COMPARATOR = new Comparator<ItemInfo>() {
 
         @Override
         public int compare(ItemInfo lhs, ItemInfo rhs) {