Removing some synthetic method creation

> Make package-private and @Thunk all private methods and constructors accessed from inner classes.

Change-Id: Ie5913860a0c33e48e9bf68f9b5b1699f64c2f174

src/com/android/launcher3/allapps/AllAppsGridAdapter.java

@@ -288,7 +288,7 @@ class AllAppsGridAdapter extends RecyclerView.Adapter<AllAppsGridAdapter.ViewHol
     private GridLayoutManager mGridLayoutMgr;
     private GridSpanSizer mGridSizer;
     private GridItemDecoration mItemDecoration;
-    private PredictionBarSpacerCallbacks mPredictionBarCb;
+    @Thunk PredictionBarSpacerCallbacks mPredictionBarCb;
     private View.OnTouchListener mTouchListener;
     private View.OnClickListener mIconClickListener;
     private View.OnLongClickListener mIconLongClickListener;