Moving hotseat predictions to ModelDelegate

Bug: 160748731

Change-Id: I8db7856a17e0b6ca45b4d5ec3513f788f22db11a

src/com/android/launcher3/model/ModelDelegate.java

@@ -71,6 +71,12 @@ public class ModelDelegate implements ResourceBasedOverride {
     @WorkerThread
     public void loadItems(UserManagerState ums, Map<ShortcutKey, ShortcutInfo> pinnedShortcuts) { }
 
+    /**
+     * Called during loader after workspace loading is complete
+     */
+    @WorkerThread
+    public void workspaceLoadComplete() { }
+
     /**
      * Called when the delegate is no loner needed
      */