Convert repaint-rtl-column to text-based-repaint

This doesn't work in FCM because it's not getting the repaint rects from
graphics layers.  (This is also why the Android expectation is empty.)
Convert this to use text-based-repaint so that after
https://codereview.chromium.org/252353002/ lands it will output repaint
rects appropriately.

BUG=361729

Review URL: https://codereview.chromium.org/258633004

git-svn-id: svn://svn.chromium.org/blink/trunk@172582 bbb929c8-8fbe-4397-9dbb-9b2b20218538