This changeset reverts some or all edits made in changesets 139297587, 139301932, 141367862, 142938855, 142939885, 142940709, 142941074, 142952251, 143171730, 143171820, 143215015, 143215144, 143217067, 143241495, 143241597, 143277594, 144925435, 144946333, 144946668.