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layer at (0,0) size 800x600
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        RenderText {#text} at (0,0) size 779x19
          text run at (0,0) width 779: "This test ensures selection that crosses the shadow DOM boundary of a readonly input element cannot be made by a mouse drag."
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          text run at (0,0) width 759: "To manually test, select text by a mouse drag starting in \"world\" and ending in \"hello\". Selection should not extend into the input"
          text run at (0,20) width 50: "element."
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        RenderText {#text} at (63,6) size 4x19
          text run at (63,6) width 4: " "
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          RenderText {#text} at (67,6) size 35x19
            text run at (67,6) width 35: "world"
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    RenderText {#text} at (0,0) size 33x20
      text run at (0,0) width 33: "hello"
selection start: position 0 of child 2 {#text} of child 5 {DIV} of body
selection end:   position 2 of child 0 {#text} of child 3 {SPAN} of child 5 {DIV} of body