Launch tasks before testing switch to overview.

Bug: 238461210
Test: TaplTestsQuickstep#testSwitchToOverview
Change-Id: I0033b8b33371a01165c595ae66826bef5699eddb
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index 159b65f..42e9be3 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -229,6 +229,7 @@
     @PortraitLandscape
     @ScreenRecord // b/238461765
     public void testSwitchToOverview() throws Exception {
+        startTestAppsWithCheck();
         assertNotNull("Workspace.switchToOverview() returned null",
                 mLauncher.goHome().switchToOverview());
         assertTrue("Launcher internal state didn't switch to Overview",