Rebaseline XP tests for virtual/prefer_compositing_to_lcd_text/compositing/overflow/

NOTRY=True
TBR=rune@opera.com
BUG=425552

Review URL: https://codereview.chromium.org/674543003

git-svn-id: svn://svn.chromium.org/blink/trunk@184207 bbb929c8-8fbe-4397-9dbb-9b2b20218538