Merge "Only need to dismiss stage if one of the task is closed." into udc-dev

                    }

                }

            }

            // If the size of dismissStages > 0, the task is closed without prepare pending

            // If the size of dismissStages == 1, one of the task is closed without prepare pending

            // transition, which could happen if all activities were finished after finish top

            // activity in a task, so the trigger task is null when handleRequest.

            // Note if the size of dismissStages == 2, it's starting a new task, so don't handle it.

            final ArraySet<StageTaskListener> dismissStages = record.getShouldDismissedStage();

            if (mMainStage.getChildCount() == 0 || mSideStage.getChildCount() == 0

                    || dismissStages.size() > 0) {

                    || dismissStages.size() == 1) {

                Log.e(TAG, "Somehow removed the last task in a stage outside of a proper "

                        + "transition.");

                final WindowContainerTransaction wct = new WindowContainerTransaction();