Change SVG layout tree output to be more meaningful and consistent

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

Index: third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-ctm-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-ctm-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-ctm-expected.txt
index 896171343f838c02e68375857ae6934072aef29d..526662a42ab209a0f25ba068e7bb23fc2ea5dcf1 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-ctm-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/text-ctm-expected.txt
@@ -1,9 +1,9 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (100,71) size 88x37
-    LayoutSVGContainer {g} at (100,71) size 88x37 [transform={m=((1.00,0.00)(0.00,1.00)) t=(10.00,10.00)}]
-      LayoutSVGViewportContainer {svg} at (100,71) size 88x37
-        LayoutSVGText {text} at (70,55) size 44x19 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 44x19
+  LayoutSVGRoot {svg} at (0,0) size 800x600
+    LayoutSVGContainer {g} at (90,61) size 87.09x37 [transform={m=((1.00,0.00)(0.00,1.00)) t=(10.00,10.00)}]
+      LayoutSVGViewportContainer {svg} at (90,61) size 87.09x37
+        LayoutSVGText {text} at (70,55.50) size 43.55x18.50 [transform={m=((2.00,0.00)(0.00,2.00)) t=(-50.00,-50.00)}] contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (70,55.50) size 43.55x18.50
             chunk 1 text run 1 at (70.00,70.00) startOffset 0 endOffset 6 width 43.55: "Passed"