Make touch outside container touch at the middle of the container in terms of height

Bug: 326839375
Test: TaplTestsQuickstep#testOverviewDeadzones
Flag: NONE
Change-Id: I7a013ab7d146756cbff009c21b838881e09e044a
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index bfff541..0e523c3 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -2452,7 +2452,7 @@
             int bottomBound = Math.min(
                     containerBounds.bottom,
                     getRealDisplaySize().y - systemGestureRegion.bottom);
-            int y = (bottomBound - containerBounds.top) / 2;
+            int y = (bottomBound + containerBounds.top) / 2;
             // Do not tap in the status bar.
             y = Math.max(y, systemGestureRegion.top);