Fix regression: taps were not sent to wallpaper

Change-Id: I2114cf8161c7a3b0fa6849f15e5a8e4bd45dbabb

src/com/android/launcher2/CellLayout.java

@@ -81,6 +81,7 @@ public class CellLayout extends ViewGroup {
     int[] mTempLocation = new int[2];
 
     boolean[][] mOccupied;
+    private boolean mLastDownOnOccupiedCell = false;
 
     private OnTouchListener mInterceptTouchListener;
 
@@ -752,6 +753,8 @@ public class CellLayout extends ViewGroup {
             }
         }
 
+        mLastDownOnOccupiedCell = found;
+
         if (!found) {
             final int cellXY[] = mTmpXY;
             pointToCellExact(x, y, cellXY);
@@ -1877,4 +1880,8 @@ out:            for (int i = x; i < x + spanX - 1 && x < xCount; i++) {
                     + ", x=" + cellX + ", y=" + cellY + "]";
         }
     }
+
+    public boolean lastDownOnOccupiedCell() {
+        return mLastDownOnOccupiedCell;
+    }
 }