Create an antialiased virtual layout test group for font testing on Mac

LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/pre-wrap-overflow-selection-expected.txt

Index: LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/pre-wrap-overflow-selection-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/pre-wrap-overflow-selection-expected.txt b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/pre-wrap-overflow-selection-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..944ba4bf95ef8d7834dfeb53c2da984901ec93d9
--- /dev/null
+++ b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/pre-wrap-overflow-selection-expected.txt
@@ -0,0 +1,49 @@
+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 784x579
+      RenderBlock {P} at (0,0) size 784x36
+        RenderText {#text} at (0,0) size 253x18
+          text run at (0,0) width 253: "This test checks for a regression against "
+        RenderInline {I} at (0,0) size 734x36
+          RenderInline {A} at (0,0) size 348x18 [color=#0000EE]
+            RenderText {#text} at (253,0) size 348x18
+              text run at (253,0) width 348: "http://bugzilla.opendarwin.org/show_bug.cgi?id=5619"
+          RenderText {#text} at (601,0) size 734x36
+            text run at (601,0) width 133: " CSS2: pre-wrap has"
+            text run at (0,18) width 177: "overflow/selection problems"
+        RenderText {#text} at (177,18) size 4x18
+          text run at (177,18) width 4: "."
+      RenderBlock {P} at (0,52) size 784x18
+        RenderText {#text} at (0,0) size 693x18
+          text run at (0,0) width 693: "Both boxes should not have scroll bars. The selection should not spill out of the blue box to the right of \x{201C}text\x{201D}."
+      RenderBlock {HR} at (0,86) size 784x2 [border: (1px inset #EEEEEE)]
+      RenderBlock {HR} at (0,197) size 784x2 [border: (1px inset #EEEEEE)]
+      RenderBlock {PRE} at (0,212) size 108x83 [border: (4px solid #0000FF)]
+        RenderText {#text} at (4,4) size 100x75
+          text run at (4,4) width 88: "This   text"
+          text run at (92,4) width 12: "     "
+          text run at (4,19) width 72: "will wrap"
+          text run at (76,19) width 0: " "
+          text run at (4,34) width 72: "and   fit"
+          text run at (76,34) width 24: "   "
+          text run at (4,49) width 80: "within the"
+          text run at (84,49) width 0: " "
+          text run at (4,64) width 32: "box."
+          text run at (36,64) width 0: " "
+layer at (8,109) size 108x83 clip at (12,113) size 100x75
+  RenderBlock {PRE} at (0,101) size 108x83 [border: (4px solid #A52A2A)]
+    RenderText {#text} at (4,4) size 100x75
+      text run at (4,4) width 88: "This   text"
+      text run at (92,4) width 12: "     "
+      text run at (4,19) width 72: "will wrap"
+      text run at (76,19) width 0: " "
+      text run at (4,34) width 72: "and   fit"
+      text run at (76,34) width 24: "   "
+      text run at (4,49) width 80: "within the"
+      text run at (84,49) width 0: " "
+      text run at (4,64) width 32: "box."
+      text run at (36,64) width 0: " "
+selection start: position 7 of child 0 {#text} of child 7 {PRE} of body
+selection end:   position 15 of child 0 {#text} of child 11 {PRE} of body