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

LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/tab-character-basics-expected.txt

Index: LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/tab-character-basics-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/tab-character-basics-expected.txt b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/tab-character-basics-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..98e4b9c68ccf75f18c545af99c1ae0136caaca1f
--- /dev/null
+++ b/LayoutTests/platform/mac/virtual/mac-antialiasedtext/fast/text/whitespace/tab-character-basics-expected.txt
@@ -0,0 +1,62 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x502
+  RenderBlock {HTML} at (0,0) size 800x502
+    RenderBody {BODY} at (8,8) size 646x486 [border: (3px solid #FF0000)]
+      RenderBlock {P} at (3,19) size 640x21 [color=#0000FF]
+        RenderText {#text} at (0,0) size 530x20
+          text run at (0,0) width 530: "-- Following text and list are whitespace:NORMAL only"
+      RenderBlock {P} at (3,56) size 640x42
+        RenderText {#text} at (0,0) size 310x20
+          text run at (0,0) width 310: "0123456789012345678901234567890"
+        RenderBR {BR} at (310,0) size 0x20
+        RenderText {#text} at (0,21) size 80x20
+          text run at (0,21) width 80: "X\x{9}XX\x{9}XXX"
+      RenderBlock {OL} at (3,114) size 640x63
+        RenderListItem {LI} at (40,0) size 600x21
+          RenderListMarker at (-35,0) size 30x20: "1"
+          RenderText {#text} at (0,0) size 30x20
+            text run at (0,0) width 30: "a\x{9}X"
+        RenderListItem {LI} at (40,21) size 600x21
+          RenderListMarker at (-35,0) size 30x20: "2"
+          RenderText {#text} at (0,0) size 40x20
+            text run at (0,0) width 40: "bb\x{9}X"
+        RenderListItem {LI} at (40,42) size 600x21
+          RenderListMarker at (-35,0) size 30x20: "3"
+          RenderText {#text} at (0,0) size 50x20
+            text run at (0,0) width 50: "ccc\x{9}X"
+      RenderBlock {P} at (3,193) size 640x21 [color=#0000FF]
+        RenderText {#text} at (0,0) size 500x20
+          text run at (0,0) width 500: "-- Following text and list are whitespace:PRE only"
+      RenderBlock {OL} at (3,230) size 640x63
+        RenderListItem {LI} at (40,0) size 600x21
+          RenderListMarker at (-35,0) size 30x20: "1"
+          RenderText {#text} at (0,0) size 170x20
+            text run at (0,0) width 170: "a\x{9}\x{9}X"
+        RenderListItem {LI} at (40,21) size 600x21
+          RenderListMarker at (-35,0) size 30x20: "2"
+          RenderText {#text} at (0,0) size 90x20
+            text run at (0,0) width 90: "bb\x{9}X"
+        RenderListItem {LI} at (40,42) size 600x21
+          RenderListMarker at (-35,0) size 30x20: "3"
+          RenderText {#text} at (0,0) size 90x20
+            text run at (0,0) width 90: "ccc\x{9}X"
+      RenderBlock {P} at (3,309) size 640x63
+        RenderText {#text} at (0,0) size 510x20
+          text run at (0,0) width 510: "012345678901234567890123456789012345678901234567890"
+        RenderBR {BR} at (510,0) size 0x20
+        RenderText {#text} at (0,21) size 640x41
+          text run at (0,21) width 640: "X\x{9}\x{9}XX\x{9}\x{9}XXX\x{9}\x{9}XXXX\x{9}\x{9}"
+          text run at (0,42) width 50: "XXXXX"
+      RenderBlock {P} at (3,388) size 640x21 [color=#0000FF]
+        RenderText {#text} at (0,0) size 600x20
+          text run at (0,0) width 600: "-- Following text mixes whitespace:NORMAL and whitespace:PRE"
+      RenderBlock {P} at (3,425) size 640x42
+        RenderText {#text} at (0,0) size 490x20
+          text run at (0,0) width 490: "AAAA BBBB CCCC DDDD EEEE FFFF GGGG HHHH IIII JJJJ"
+        RenderInline {SPAN} at (0,0) size 640x41
+          RenderText {#text} at (490,0) size 640x41
+            text run at (490,0) width 150: "\x{9}\x{9}"
+            text run at (0,21) width 160: "\x{9}\x{9}"
+        RenderText {#text} at (160,21) size 40x20
+          text run at (160,21) width 40: "KKKK"