layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x600
  LayoutBlockFlow {HTML} at (0,0) size 800x600
    LayoutBlockFlow {BODY} at (8,8) size 784x584
      LayoutBlockFlow {P} at (0,0) size 784x36
        LayoutText {#text} at (0,0) size 54x17
          text run at (0,0) width 54: "Test for "
        LayoutInline {I} at (0,0) size 770x35
          LayoutInline {A} at (0,0) size 305x17 [color=#0000EE]
            LayoutText {#text} at (53,0) size 305x17
              text run at (53,0) width 305: "http://bugs.webkit.org/show_bug.cgi?id=16426"
          LayoutText {#text} at (357,0) size 770x35
            text run at (357,0) width 5: " "
            text run at (361,0) width 409: "Divs with overflow:auto: scrollbars not correctly updated when"
            text run at (0,18) width 104: "contents change"
        LayoutText {#text} at (103,18) size 5x17
          text run at (103,18) width 5: "."
      LayoutBlockFlow {P} at (0,52) size 784x18
        LayoutText {#text} at (0,0) size 332x17
          text run at (0,0) width 332: "The thumb should be in the middle of the scroll bar."
layer at (8,94) size 200x200 clip at (8,94) size 185x200 scrollY 200.00 scrollHeight 600
  LayoutBlockFlow {DIV} at (0,86) size 200x200
    LayoutBlockFlow {DIV} at (0,0) size 185x600