Fix unittests

LayoutTests/platform/mac/virtual/softwarecompositing/geometry/clipping-foreground-expected.txt

Index: LayoutTests/platform/mac/virtual/softwarecompositing/geometry/clipping-foreground-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/softwarecompositing/geometry/clipping-foreground-expected.txt b/LayoutTests/platform/mac/virtual/softwarecompositing/geometry/clipping-foreground-expected.txt
deleted file mode 100644
index b2da2accd2573792fdb33d34b6bf4e5ea632dc1c..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac/virtual/softwarecompositing/geometry/clipping-foreground-expected.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-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 436x18
-          text run at (0,0) width 436: "The layering of the boxes should not be affected by overflow:hidden."
-      RenderBlock (anonymous) at (0,34) size 784x479
-        RenderText {#text} at (320,306) size 4x18
-          text run at (320,306) width 4: " "
-        RenderText {#text} at (0,0) size 0x0
-layer at (68,261) size 200x200 layerType: background only
-layer at (28,221) size 150x150
-  RenderBlock (positioned) zI: -1 {DIV} at (-40,-40) size 150x150 [color=#808080] [bgcolor=#C86464] [border: (2px solid #000000)]
-    RenderText zI: -1 {#text} at (22,22) size 106x40
-      text run at (22,22) width 106: "Behind"
-    RenderText zI: -1 {#text} at (0,0) size 0x0
-layer at (50,303) size 100x100
-  RenderBlock (positioned) {DIV} at (22,82) size 100x100 [bgcolor=#008000] [border: (2px solid #000000)]
-    RenderText {#text} at (22,22) size 55x44
-      text run at (22,22) width 55: "Behind"
-      text run at (22,44) width 53: "behind"
-layer at (68,261) size 200x200 layerType: foreground only
-  RenderBlock (relative positioned) {DIV} at (60,219) size 200x200 [color=#0000FF] [bgcolor=#FFFFFFCC] [border: (10px solid #000000)]
-    RenderText {#text} at (30,30) size 126x80
-      text run at (30,30) width 59: "Box"
-      text run at (30,70) width 126: "contents"
-    RenderText {#text} at (0,0) size 0x0
-    RenderText {#text} at (0,0) size 0x0
-layer at (158,351) size 150x150
-  RenderBlock (positioned) zI: 1 {DIV} at (90,90) size 150x150 [color=#808080] [bgcolor=#C8C880] [border: (2px solid #000000)]
-    RenderText zI: 1 {#text} at (22,22) size 86x80
-      text run at (22,22) width 33: "In"
-      text run at (22,62) width 86: "Front"
-layer at (392,102) size 200x200 clip at (402,112) size 180x180 scrollWidth 230 scrollHeight 230 layerType: background only
-layer at (352,62) size 150x150 backgroundClip at (402,112) size 180x180 clip at (402,112) size 180x180 outlineClip at (402,112) size 180x180
-  RenderBlock (positioned) zI: -1 {DIV} at (-40,-40) size 150x150 [color=#808080] [bgcolor=#C86464] [border: (2px solid #000000)]
-    RenderText zI: -1 {#text} at (22,22) size 106x40
-      text run at (22,22) width 106: "Behind"
-    RenderText zI: -1 {#text} at (0,0) size 0x0
-layer at (374,144) size 100x100 backgroundClip at (402,112) size 180x180 clip at (402,112) size 180x180 outlineClip at (402,112) size 180x180
-  RenderBlock (positioned) {DIV} at (22,82) size 100x100 [bgcolor=#008000] [border: (2px solid #000000)]
-    RenderText {#text} at (22,22) size 55x44
-      text run at (22,22) width 55: "Behind"
-      text run at (22,44) width 53: "behind"
-layer at (392,102) size 200x200 clip at (402,112) size 180x180 scrollWidth 230 scrollHeight 230 layerType: foreground only
-  RenderBlock (relative positioned) {DIV} at (384,60) size 200x200 [color=#0000FF] [bgcolor=#FFFFFFCC] [border: (10px solid #000000)]
-    RenderText {#text} at (30,30) size 126x80
-      text run at (30,30) width 59: "Box"
-      text run at (30,70) width 126: "contents"
-    RenderText {#text} at (0,0) size 0x0
-    RenderText {#text} at (0,0) size 0x0
-layer at (482,192) size 150x150 backgroundClip at (402,112) size 180x180 clip at (402,112) size 180x180 outlineClip at (402,112) size 180x180
-  RenderBlock (positioned) zI: 1 {DIV} at (90,90) size 150x150 [color=#808080] [bgcolor=#C8C880] [border: (2px solid #000000)]
-    RenderText zI: 1 {#text} at (22,22) size 86x80
-      text run at (22,22) width 33: "In"
-      text run at (22,62) width 86: "Front"