Test TaskbarAllAppsController non-search behavior.

Flag: TEST_ONLY
Bug: 230027385, 346394798
Test: TaskbarAllAppsControllerTest
Change-Id: Id97e1b82cb8fba48687b5e23222e3bba6695ac4c

src/com/android/launcher3/notification/NotificationKeyData.java

@@ -22,6 +22,7 @@ import android.service.notification.StatusBarNotification;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.Utilities;
 
@@ -38,6 +39,11 @@ public class NotificationKeyData {
     public final String[] personKeysFromNotification;
     public int count;
 
+    @VisibleForTesting
+    public NotificationKeyData(String notificationKey) {
+        this(notificationKey, null, 1, new String[]{});
+    }
+
     private NotificationKeyData(String notificationKey, String shortcutId, int count,
             String[] personKeysFromNotification) {
         this.notificationKey = notificationKey;