Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-on-text-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-on-text-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-on-text-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-on-text-expected.txt
index 75ef875c0ca0468ae3c98743772f878beb65d602..0d04875b8c7013d731da8d5d22be937a3dfe6752 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-on-text-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-on-text-expected.txt
@@ -1,19 +1,19 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (20,0) size 489x128
-    LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
-      LayoutSVGText {text} at (0,-26) size 67x46 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 67x46
+  LayoutSVGRoot {svg} at (0,0) size 800x600
+    LayoutSVGHiddenContainer {defs} at (0,-26) size 66.11x46
+      LayoutSVGText {text} at (0,-26) size 66.11x46 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (0,-26) size 66.11x46
           chunk 1 text run 1 at (0.00,10.00) startOffset 0 endOffset 4 width 66.07: "Test"
-    LayoutSVGContainer {g} at (246,0) size 141x94 [transform={m=((1.00,0.00)(0.00,1.00)) t=(125.00,25.00)}]
-      LayoutSVGText {text} at (0,-26) size 67x46 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 67x46
+    LayoutSVGContainer {g} at (0,-26) size 66.11x46 [transform={m=((1.00,0.00)(0.00,1.00)) t=(125.00,25.00)}]
+      LayoutSVGText {text} at (0,-26) size 66.11x46 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (0,-26) size 66.11x46
           chunk 1 text run 1 at (0.00,10.00) startOffset 0 endOffset 4 width 66.07: "Test"
-    LayoutSVGText {text} at (10,45) size 245x19 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 245x19
+    LayoutSVGText {text} at (10,45.50) size 244.39x18.50 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,45.50) size 244.39x18.50
         chunk 1 text run 1 at (10.00,60.00) startOffset 0 endOffset 38 width 244.40: "The two objects should look identical."
-    LayoutSVGContainer {use} at (46,0) size 141x94 [transform={m=((1.00,0.00)(0.00,1.00)) t=(25.00,25.00)}]
-      LayoutSVGText {text} at (0,-26) size 67x46 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 67x46
+    LayoutSVGContainer {use} at (0,-26) size 66.11x46 [transform={m=((1.00,0.00)(0.00,1.00)) t=(25.00,25.00)}]
+      LayoutSVGText {text} at (0,-26) size 66.11x46 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (0,-26) size 66.11x46
           chunk 1 text run 1 at (0.00,10.00) startOffset 0 endOffset 4 width 66.07: "Test"