third_party/blink/web_tests/content_extraction/vertical-writing-mode-expected.txt

<Root> [box: 0,0 800x600]
  <Container> [box: 0,0 800x60]
    <Container> [box: 0,0 800x60]
      <Container> [box: 0,0 100x60]
        <Text> "     ABCDEFGHIJKL" [box: 90,0 10x120]
        <Container> [outerBox: -10,0 100x10] [visibleBox: 0,0 90x10]
          <Text> "horizontal" [outerBox: -10,0 100x10] [visibleBox: 0,0 90x10]
        <Text> "MNOPQRSTU   " [outerBox: -20,0 10x90] [visibleBox: 0,0 0x0]