Allow fractional letter- word-spacing values.

LayoutTests/platform/linux/svg/text/text-spacing-01-b-expected.txt

Index: LayoutTests/platform/linux/svg/text/text-spacing-01-b-expected.txt
diff --git a/LayoutTests/platform/linux/svg/text/text-spacing-01-b-expected.txt b/LayoutTests/platform/linux/svg/text/text-spacing-01-b-expected.txt
index d6000e19fa6e4aa8b43024c3e89b3164885c94e8..c372142c5e4f08bf6d028223a56a56746c390276 100644
--- a/LayoutTests/platform/linux/svg/text/text-spacing-01-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/text/text-spacing-01-b-expected.txt
@@ -26,9 +26,25 @@ layer at (0,0) size 800x600
             chunk 1 text run 15 at (37.30,16.00) startOffset 14 endOffset 15 width 2.20: ":"
             chunk 1 text run 16 at (38.50,16.00) startOffset 15 endOffset 16 width 2.70: "-"
             chunk 1 text run 17 at (40.20,16.00) startOffset 16 endOffset 17 width 4.50: "1"
-        RenderSVGText {text} at (3,16) size 58x10 contains 1 chunk(s)
-          RenderSVGInlineText {#text} at (0,0) size 58x9
-            chunk 1 text run 1 at (3.00,24.00) startOffset 0 endOffset 17 width 57.20: "letter-spacing:.3"
+        RenderSVGText {text} at (3,16) size 62x10 contains 1 chunk(s)
+          RenderSVGInlineText {#text} at (0,0) size 62x9
+            chunk 1 text run 1 at (3.00,24.00) startOffset 0 endOffset 1 width 1.80: "l"
+            chunk 1 text run 2 at (5.10,24.00) startOffset 1 endOffset 2 width 4.50: "e"
+            chunk 1 text run 3 at (9.90,24.00) startOffset 2 endOffset 3 width 2.20: "t"
+            chunk 1 text run 4 at (12.40,24.00) startOffset 3 endOffset 4 width 2.20: "t"
+            chunk 1 text run 5 at (14.90,24.00) startOffset 4 endOffset 5 width 4.50: "e"
+            chunk 1 text run 6 at (19.70,24.00) startOffset 5 endOffset 6 width 2.70: "r"
+            chunk 1 text run 7 at (22.70,24.00) startOffset 6 endOffset 7 width 2.70: "-"
+            chunk 1 text run 8 at (25.70,24.00) startOffset 7 endOffset 8 width 4.00: "s"
+            chunk 1 text run 9 at (30.00,24.00) startOffset 8 endOffset 9 width 4.50: "p"
+            chunk 1 text run 10 at (34.80,24.00) startOffset 9 endOffset 10 width 4.50: "a"
+            chunk 1 text run 11 at (39.60,24.00) startOffset 10 endOffset 11 width 4.00: "c"
+            chunk 1 text run 12 at (43.90,24.00) startOffset 11 endOffset 12 width 1.80: "i"
+            chunk 1 text run 13 at (46.00,24.00) startOffset 12 endOffset 13 width 4.50: "n"
+            chunk 1 text run 14 at (50.80,24.00) startOffset 13 endOffset 14 width 4.40: "g"
+            chunk 1 text run 15 at (55.50,24.00) startOffset 14 endOffset 15 width 2.20: ":"
+            chunk 1 text run 16 at (58.00,24.00) startOffset 15 endOffset 16 width 2.20: "."
+            chunk 1 text run 17 at (60.50,24.00) startOffset 16 endOffset 17 width 4.50: "3"
         RenderSVGText {text} at (3,25) size 65x10 contains 1 chunk(s)
           RenderSVGInlineText {#text} at (0,0) size 65x9
             chunk 1 text run 1 at (3.00,33.00) startOffset 0 endOffset 16 width 64.50: "ws:0 - Two Words"