- When we clean up the recents window, the recents view gets dettached, which causes a activity leak in tests and prod through RecentsView.mOnTaskLaunchCancelledRunnable. Fixing this leak across all uses of RecentsView, rather than just for RecentsWindowManager
- Also cleaning up a potential leak in RecentsWindowManager.callbacks
Flag: com.android.launcher3.enable_launcher_overview_in_window
Flag: com.android.launcher3.enable_fallback_overview_in_window
Bug: 377678992
Bug: 292269949
Test: swiped up from running app, checked leak canary and heap dump; pre/post-submit tests
Change-Id: Id95b36dad6e41e5b21d1af8ede489f84ef987e50