Pushing folders up to DragLayer

-> Increasing max num of items in Folders to match the grid
   size of the workspace.
-> Had to push folders up to prevent clipping

Change-Id: I7aae7920cff940b8e88e9bef82162c6ab5ff11e9

src/com/android/launcher2/DragLayer.java

@@ -146,7 +146,7 @@ public class DragLayer extends FrameLayout {
         return mDragController.onTouchEvent(ev);
     }
 
-    private void getDescendantRectRelativeToSelf(View descendant, Rect r) {
+    public void getDescendantRectRelativeToSelf(View descendant, Rect r) {
         descendant.getHitRect(r);
 
         ViewParent viewParent = descendant.getParent();