Moving hotseat predictions to ModelDelegate

Bug: 160748731

Change-Id: I8db7856a17e0b6ca45b4d5ec3513f788f22db11a
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index f58e0b4..6aa4c43 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -218,6 +218,13 @@
     }
 
     /**
+     * Called when the workspace items have drastically changed
+     */
+    public void onWorkspaceUiChanged() {
+        MODEL_EXECUTOR.execute(mModelDelegate::workspaceLoadComplete);
+    }
+
+    /**
      * Called when the model is destroyed
      */
     public void destroy() {