Merge "Hide task surface once it goes off-screen in close animation" into main

        finishT.hide(sc);

        final Rect startBounds = new Rect(change.getStartAbsBounds());

        animator.addUpdateListener(animation -> {

            t.setPosition(sc, startBounds.left,

                    startBounds.top + (animation.getAnimatedFraction() * screenHeight));

            final float newTop = startBounds.top + (animation.getAnimatedFraction() * screenHeight);

            t.setPosition(sc, startBounds.left, newTop);

            if (newTop > screenHeight) {

                // At this point the task surface is off-screen, so hide it to prevent flicker

                // failures. See b/377651666.

                t.hide(sc);

            }

            t.apply();

        });

        animator.addListener(