Merge "Fix crash when creating overview proxy service from background thread" into pi-dev

     */

    class TaskStackListenerImpl extends SysUiTaskStackChangeListener {

        private OverviewProxyService mOverviewProxyService;

        public TaskStackListenerImpl() {

            mOverviewProxyService = Dependency.get(OverviewProxyService.class);

        }

        @Override

        public void onTaskStackChangedBackground() {

            // Skip background preloading recents in SystemUI if the overview services is bound

            if (Dependency.get(OverviewProxyService.class).isEnabled()) {

            if (mOverviewProxyService.isEnabled()) {

                return;

            }