Close out of recents when clicking it if it's empty

Bug: 77977813
Change-Id: Iadc95e47c68ed54b6f98bb053a543c0b240117c2
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index d214b13..dfaa94b 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -79,7 +79,6 @@
 import com.android.systemui.shared.system.TaskStackChangeListener;
 
 import java.util.ArrayList;
-import java.util.function.Consumer;
 
 /**
  * A list of recent tasks.
@@ -324,6 +323,9 @@
     @Override
     public boolean onTouchEvent(MotionEvent ev) {
         super.onTouchEvent(ev);
+        if (ev.getAction() == MotionEvent.ACTION_UP && mShowEmptyMessage) {
+            onAllTasksRemoved();
+        }
         // Do not let touch escape to siblings below this view.
         return true;
     }