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

LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/007-expected.txt

Index: LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/007-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/007-expected.txt b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/007-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..60855672ebb12143a023a5c12d7d4ebabff3eb2f
--- /dev/null
+++ b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/007-expected.txt
@@ -0,0 +1,48 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x160
+  RenderBlock {HTML} at (0,0) size 800x160
+    RenderBody {BODY} at (8,8) size 784x132
+      RenderBlock (anonymous) at (0,0) size 784x18
+        RenderInline {DIV} at (0,0) size 528x16 [color=#FFFFFF] [bgcolor=#FF0000]
+          RenderText {#text} at (16,1) size 528x16
+            text run at (16,1) width 528: "Ahem_font_required_for_this_test."
+        RenderText {#text} at (0,0) size 0x0
+      RenderBlock {P} at (0,34) size 784x18
+        RenderText {#text} at (0,0) size 487x18
+          text run at (0,0) width 487: "There should be no red below, only two identical striped green and lime bars."
+      RenderBlock {DIV} at (20,72) size 744x20
+        RenderInline {SPAN} at (0,0) size 220x20 [color=#800000] [bgcolor=#FF0000]
+          RenderText {#text} at (0,0) size 0x0
+          RenderInline {SPAN} at (0,0) size 40x20 [color=#008000] [bgcolor=#00FF00]
+            RenderText {#text} at (0,0) size 40x20
+              text run at (0,0) width 40: "X "
+          RenderText {#text} at (0,0) size 0x0
+          RenderInline {SPAN} at (0,0) size 0x0
+            RenderText {#text} at (0,0) size 0x0
+          RenderText {#text} at (0,0) size 0x0
+          RenderInline {SPAN} at (0,0) size 40x20 [color=#008000] [bgcolor=#00FF00]
+            RenderText {#text} at (40,0) size 40x20
+              text run at (40,0) width 40: "X "
+          RenderText {#text} at (0,0) size 0x0
+          RenderInline {SPAN} at (0,0) size 40x20 [color=#008000] [bgcolor=#00FF00]
+            RenderText {#text} at (80,0) size 40x20
+              text run at (80,0) width 40: "X "
+          RenderText {#text} at (0,0) size 0x0
+          RenderInline {SPAN} at (0,0) size 40x20 [color=#008000] [bgcolor=#00FF00]
+            RenderText {#text} at (120,0) size 40x20
+              text run at (120,0) width 40: "X "
+          RenderText {#text} at (0,0) size 0x0
+          RenderInline {SPAN} at (0,0) size 20x20 [color=#008000] [bgcolor=#00FF00]
+            RenderText {#text} at (160,0) size 20x20
+              text run at (160,0) width 20: "X"
+          RenderInline {SPAN} at (0,0) size 40x20 [color=#008000] [bgcolor=#00FF00]
+            RenderText {#text} at (180,0) size 40x20
+              text run at (180,0) width 40: " X"
+            RenderInline {SPAN} at (0,0) size 0x20 [color=#800000] [bgcolor=#FF0000]
+              RenderText {#text} at (0,0) size 0x0
+          RenderText {#text} at (0,0) size 0x0
+      RenderBlock {DIV} at (20,112) size 744x20
+        RenderInline {SPAN} at (0,0) size 220x20 [color=#008000] [bgcolor=#00FF00]
+          RenderText {#text} at (0,0) size 220x20
+            text run at (0,0) width 220: "X X X X X X"