Changing folders to use CellLayouts

Change-Id: Ic80bece18855a4f5d2476c224ef66f035ac7c97b
diff --git a/src/com/android/launcher2/CellLayout.java b/src/com/android/launcher2/CellLayout.java
index ac1a4bd..636b041 100644
--- a/src/com/android/launcher2/CellLayout.java
+++ b/src/com/android/launcher2/CellLayout.java
@@ -1520,6 +1520,14 @@
         }
     }
 
+    public boolean isOccupied(int x, int y) {
+        if (x < mCountX && y < mCountY) {
+            return mOccupied[x][y];
+        } else {
+            throw new RuntimeException("Position exceeds the bound of this CellLayout");
+        }
+    }
+
     @Override
     public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) {
         return new CellLayout.LayoutParams(getContext(), attrs);