Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/text/text-selection-fonts-01-t-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/text/text-selection-fonts-01-t-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/text/text-selection-fonts-01-t-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/text/text-selection-fonts-01-t-expected.txt
index 9a79be5f57ec0b2c8529bae565db26068691fef2..f7d5ead0047843af2603df2c24512a1bcd0618ca 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/text/text-selection-fonts-01-t-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/text/text-selection-fonts-01-t-expected.txt
@@ -2,33 +2,33 @@ layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
   LayoutSVGRoot {svg} at (0,0) size 800x600
-    LayoutSVGContainer {g} at (32,47) size 523x447
-      LayoutSVGContainer {g} at (32,47) size 523x447
-        LayoutSVGText {text} at (19,57) size 197x29 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 197x28
+    LayoutSVGContainer {g} at (19.52,28.41) size 313.31x267.59
+      LayoutSVGContainer {g} at (19.52,28.41) size 313.31x267.59
+        LayoutSVGText {text} at (19.52,57.81) size 196.36x27.59 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (19.52,57.81) size 196.36x27.59
             chunk 1 text run 1 at (20.00,80.00) startOffset 0 endOffset 17 width 195.89: "A serifed face \x{753B}\x{50CF}"
-        LayoutSVGText {text} at (19,138) size 235x27 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 234x27
+        LayoutSVGText {text} at (19.95,138.41) size 233.44x26.39 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (19.95,138.41) size 233.44x26.39
             chunk 1 text run 1 at (20.00,160.00) startOffset 0 endOffset 20 width 233.40: "A sans-serif face \x{753B}\x{50CF}"
-        LayoutSVGText {text} at (20,220) size 293x28 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 293x27
+        LayoutSVGText {text} at (20,220.20) size 292.83x27 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (20,220.20) size 292.83x27
             chunk 1 text run 1 at (20.00,240.00) startOffset 0 endOffset 19 width 292.84: "A mono (iW) face \x{753B}\x{50CF}"
-        LayoutSVGContainer {g} at (66,47) size 489x313
-          LayoutSVGText {text} at (40,28) size 189x28 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 189x28
+        LayoutSVGContainer {g} at (39.97,28.41) size 292.86x187.59
+          LayoutSVGText {text} at (40,28.41) size 188.58x27.59 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (40,28.41) size 188.58x27.59
               chunk 1 text run 1 at (40.00,50.00) startOffset 0 endOffset 17 width 188.58: "A serifed face \x{753B}\x{50CF}"
-          LayoutSVGText {text} at (40,107) size 234x29 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 234x28
+          LayoutSVGText {text} at (40,107.81) size 233.39x27.59 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (40,107.81) size 233.39x27.59
               chunk 1 text run 1 at (40.00,130.00) startOffset 0 endOffset 20 width 233.40: "A sans-serif face \x{753B}\x{50CF}"
-          LayoutSVGText {text} at (39,188) size 294x28 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 293x28
+          LayoutSVGText {text} at (39.97,188.41) size 292.86x27.59 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (39.97,188.41) size 292.86x27.59
               chunk 1 text run 1 at (40.00,210.00) startOffset 0 endOffset 19 width 292.84: "A mono (iW) face \x{753B}\x{50CF}"
-        LayoutSVGText {text} at (40,268) size 222x28 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 222x28
+        LayoutSVGText {text} at (40,268.41) size 221.97x27.59 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (40,268.41) size 221.97x27.59
             chunk 1 text run 1 at (40.00,290.00) startOffset 0 endOffset 22 width 221.98: "This must be displayed"
-    LayoutSVGText {text} at (10,304) size 264x47 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 264x47
+    LayoutSVGText {text} at (10,304) size 263.31x46.19 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,304) size 263.31x46.19
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 263.31: "$Revision: 1.5 $"
-    LayoutSVGRect {rect} at (0,0) size 800x600 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]
+    LayoutSVGRect {rect} at (1,1) size 478x358 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]
 selection start: position 0 of child 0 {#text} of child 1 {text} of child 1 {g} of child 13 {g} of child 34 {svg} of document
 selection end:   position 16 of child 0 {#text} of child 15 {text} of child 34 {svg} of document