Revert "Removing AM.getTasks call on UI thread during touch down"

This reverts commit 013a8a75ab.

Reason for revert: Broke builds

Bug: 229619753
Change-Id: Idb1aecf1d43db50aa4f11dbb88079c37e401d694

quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java

@@ -48,8 +48,8 @@ import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.util.TouchController;
 import com.android.quickstep.TaskUtils;
-import com.android.quickstep.TopTaskTracker;
 import com.android.quickstep.util.AnimatorControllerWithResistance;
+import com.android.quickstep.util.AssistantUtilities;
 import com.android.quickstep.util.OverviewToHomeAnim;
 import com.android.quickstep.views.RecentsView;
 
@@ -112,8 +112,7 @@ public class NavBarToHomeTouchController implements TouchController,
             return true;
         }
         if (FeatureFlags.ASSISTANT_GIVES_LAUNCHER_FOCUS.get()
-                && TopTaskTracker.INSTANCE.get(mLauncher).getCachedTopTask(false)
-                        .isExcludedAssistant()) {
+                && AssistantUtilities.isExcludedAssistantRunning()) {
             return true;
         }
         return false;