Merge "Fix crash when unfolding a device." into tm-dev

                rotateRectToDisplayRotation(displayId, featureRect);

                transformToWindowSpaceRect(activity, featureRect);

                if (!isRectZero(featureRect)) {

                    // TODO(b/228641877) Remove guarding if when fixed.

                    features.add(new FoldingFeature(featureRect, baseFeature.getType(), state));

                }

            }

        }

        return features;

    }

    /**

     * Returns {@link true} if a {@link Rect} has zero width and zero height,

     * {@code false} otherwise.

     */

    private boolean isRectZero(Rect rect) {

        return rect.width() == 0 && rect.height() == 0;

    }

    private final class NotifyOnConfigurationChanged extends EmptyLifecycleCallbacksAdapter {

        @Override

        public void onActivityCreated(Activity activity, Bundle savedInstanceState) {