layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock {P} at (0,0) size 784x18
        RenderText {#text} at (0,0) size 758x18
          text run at (0,0) width 439: "This tests extending an editable selection across non-editable content. "
          text run at (439,0) width 319: "Everything in the region below should be selected."
      RenderBlock {DIV} at (0,34) size 784x18
        RenderText {#text} at (0,0) size 8x18
          text run at (0,0) width 8: "x"
        RenderInline {SPAN} at (0,0) size 16x18
          RenderText {#text} at (8,0) size 16x18
            text run at (8,0) width 16: "xx"
        RenderText {#text} at (24,0) size 8x18
          text run at (24,0) width 8: "x"
selection start: position 0 of child 0 {#text} of child 2 {DIV} of body
selection end:   position 1 of child 2 {#text} of child 2 {DIV} of body