layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderSVGRoot {svg} at (10,3) size 47x22
    RenderSVGHiddenContainer {defs} at (0,0) size 0x0
      RenderSVGResourceMasker {mask} [id="mask1"] [maskUnits=objectBoundingBox] [maskContentUnits=userSpaceOnUse]
        RenderSVGText {text} at (10,3) size 47x22 contains 1 chunk(s)
          RenderSVGInlineText {#text} at (0,0) size 47x22
            chunk 1 text run 1 at (10.00,20.00) startOffset 0 endOffset 4 width 47.00: "PASS"
      RenderSVGResourceMasker {mask} [id="mask2"] [maskUnits=objectBoundingBox] [maskContentUnits=userSpaceOnUse]
        RenderSVGText {text}
    RenderSVGRect {rect} at (10,3) size 47x22 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=50.00]
      [masker="mask1"] RenderSVGResourceMasker {mask} at (10,3) size 47x22
    RenderSVGRect {rect} at (0,0) size 0x0 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=100.00] [height=50.00]
      [masker="mask2"] RenderSVGResourceMasker {mask} at (0,0) size 0x0