Add debug logs to ActivityTracker

Flag: N/A
Bug: 274280837
Test: checked logs during gestures and 3-button, and dumped Launcher logs
Change-Id: Icbb1edb0e59fa9cce9364e39823a664cda4ebf1b
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index e7d2843..269603c 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2651,6 +2651,7 @@
 
         mModel.dumpState(prefix, fd, writer, args);
         mOverlayManager.dump(prefix, writer);
+        ACTIVITY_TRACKER.dump(prefix, writer);
     }
 
     /**