Merge "Fix a NPE when highlighting fingerprint row."

            final Drawable highlight = getHighlightDrawable();

            if (highlight != null && fpref != null) {

                final View view = fpref.getView();

                if (view == null) {

                    // FingerprintPreference is not bound to UI yet, so view is null.

                    return;

                }

                final int centerX = view.getWidth() / 2;

                final int centerY = view.getHeight() / 2;

                highlight.setHotspot(centerX, centerY);