Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-whitespace-handling-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-whitespace-handling-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-whitespace-handling-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-whitespace-handling-expected.txt
index 6a2b853ac4d69f5198074ba1517e47705a8da5ba..6876446869b702cacc1e2035868516a7e1929a1c 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-whitespace-handling-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-whitespace-handling-expected.txt
@@ -1,43 +1,43 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (20,11) size 497x517
-    LayoutSVGContainer {g} at (20,11) size 497x517
-      LayoutSVGText {text} at (10,5) size 239x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 239x19
+  LayoutSVGRoot {svg} at (0,0) size 800x600
+    LayoutSVGContainer {g} at (10,5.50) size 248.45x258.50
+      LayoutSVGText {text} at (10,5.50) size 238.69x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,5.50) size 238.69x18.50
           chunk 1 text run 1 at (10.00,20.00) startOffset 0 endOffset 36 width 238.70: "Testing xml:space=\"default\" support:"
-      LayoutSVGText {text} at (10,25) size 174x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 174x19
+      LayoutSVGText {text} at (10,25.50) size 173.34x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,25.50) size 173.34x18.50
           chunk 1 text run 1 at (10.00,40.00) startOffset 0 endOffset 23 width 173.34: "No Spaces Between Words"
-      LayoutSVGText {text} at (10,45) size 130x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 130x19
+      LayoutSVGText {text} at (10,45.50) size 129.48x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,45.50) size 129.48x18.50
           chunk 1 text run 1 at (10.00,60.00) startOffset 0 endOffset 18 width 129.49: "Tabs become spaces"
-      LayoutSVGText {text} at (10,65) size 111x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 111x19
+      LayoutSVGText {text} at (10,65.50) size 110.17x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,65.50) size 110.17x18.50
           chunk 1 text run 1 at (10.00,80.00) startOffset 0 endOffset 16 width 110.18: "No leading space"
-      LayoutSVGText {text} at (10,85) size 110x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 110x19
+      LayoutSVGText {text} at (10,85.50) size 109.30x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,85.50) size 109.30x18.50
           chunk 1 text run 1 at (10.00,100.00) startOffset 0 endOffset 17 width 109.30: "No trailing space"
-      LayoutSVGText {text} at (10,105) size 158x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 158x19
+      LayoutSVGText {text} at (10,105.50) size 157.30x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,105.50) size 157.30x18.50
           chunk 1 text run 1 at (10.00,120.00) startOffset 0 endOffset 11 width 78.63: "Whitespace "
           chunk 1 text run 1 at (88.63,120.00) startOffset 0 endOffset 3 width 14.67: "is "
           chunk 1 text run 1 at (103.30,120.00) startOffset 0 endOffset 10 width 64.01: "simplified"
-      LayoutSVGText {text} at (10,145) size 249x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 249x19
+      LayoutSVGText {text} at (10,145.50) size 248.45x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,145.50) size 248.45x18.50
           chunk 1 text run 1 at (10.00,160.00) startOffset 0 endOffset 37 width 248.46: "Testing xml:space=\"preserve\" support:"
-      LayoutSVGText {text} at (10,165) size 174x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 174x19
+      LayoutSVGText {text} at (10,165.50) size 173.28x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,165.50) size 173.28x18.50
           chunk 1 text run 1 at (10.00,180.00) startOffset 0 endOffset 24 width 173.28: " Newlines Become Spaces "
-      LayoutSVGText {text} at (10,185) size 130x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 130x19
+      LayoutSVGText {text} at (10,185.50) size 129.48x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,185.50) size 129.48x18.50
           chunk 1 text run 1 at (10.00,200.00) startOffset 0 endOffset 18 width 129.49: "Tabs become spaces"
-      LayoutSVGText {text} at (10,205) size 158x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 158x19
+      LayoutSVGText {text} at (10,205.50) size 157.27x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,205.50) size 157.27x18.50
           chunk 1 text run 1 at (10.00,220.00) startOffset 0 endOffset 25 width 157.27: "    Respect leading space"
-      LayoutSVGText {text} at (10,225) size 153x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 153x19
+      LayoutSVGText {text} at (10,225.50) size 152.39x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,225.50) size 152.39x18.50
           chunk 1 text run 1 at (10.00,240.00) startOffset 0 endOffset 25 width 152.39: "Respect trailing space   "
-      LayoutSVGText {text} at (10,245) size 230x19 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 230x19
+      LayoutSVGText {text} at (10,245.50) size 229.75x18.50 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,245.50) size 229.75x18.50
           chunk 1 text run 1 at (10.00,260.00) startOffset 0 endOffset 40 width 229.75: "Whitespace      is not        simplified"