Merge "Expose the LauncherModel ModelDelegate" into sc-dev am: 3f504dcbf9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14174076

Change-Id: I314b4c6be9243500a30de1139fdaaf6471df0431

src/com/android/launcher3/LauncherModel.java

@@ -130,6 +130,10 @@ public class LauncherModel extends LauncherApps.Callback implements InstallSessi
         mModelDelegate = ModelDelegate.newInstance(context, app, mBgAllAppsList, mBgDataModel);
     }
 
+    public ModelDelegate getModelDelegate() {
+        return mModelDelegate;
+    }
+
     /**
      * Adds the provided items to the workspace.
      */