Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/svg/custom/use-extern-href-expected.txt

Index: third_party/WebKit/LayoutTests/svg/custom/use-extern-href-expected.txt
diff --git a/third_party/WebKit/LayoutTests/svg/custom/use-extern-href-expected.txt b/third_party/WebKit/LayoutTests/svg/custom/use-extern-href-expected.txt
index a03a89d031eafe59722e91646079c7c5dae51e52..ab3303d5ea2de13127f524777977646bd23d04b7 100644
--- a/third_party/WebKit/LayoutTests/svg/custom/use-extern-href-expected.txt
+++ b/third_party/WebKit/LayoutTests/svg/custom/use-extern-href-expected.txt
@@ -1,24 +1,24 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (0,0) size 192x224
+  LayoutSVGRoot {svg} at (0,0) size 800x600
     LayoutSVGContainer {use} at (0,0) size 192x64
       LayoutSVGViewportContainer {svg} at (0,0) size 192x64
         LayoutSVGContainer {g} at (0,0) size 192x64
           LayoutSVGRect {rect} at (0,0) size 64x64 [fill={[type=SOLID] [color=#CC0000]}] [x=0.00] [y=0.00] [width=64.00] [height=64.00]
           LayoutSVGRect {rect} at (64,0) size 64x64 [fill={[type=SOLID] [color=#009900]}] [x=64.00] [y=0.00] [width=64.00] [height=64.00]
           LayoutSVGRect {rect} at (128,0) size 64x64 [fill={[type=SOLID] [color=#0000FF]}] [x=128.00] [y=0.00] [width=64.00] [height=64.00]
-    LayoutSVGContainer {use} at (0,80) size 192x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,80.00)}]
-      LayoutSVGContainer {g} at (0,80) size 192x64
-        LayoutSVGRect {rect} at (0,80) size 64x64 [fill={[type=SOLID] [color=#CC0000]}] [x=0.00] [y=0.00] [width=64.00] [height=64.00]
-        LayoutSVGRect {rect} at (64,80) size 64x64 [fill={[type=SOLID] [color=#009900]}] [x=64.00] [y=0.00] [width=64.00] [height=64.00]
-        LayoutSVGRect {rect} at (128,80) size 64x64 [fill={[type=SOLID] [color=#0000FF]}] [x=128.00] [y=0.00] [width=64.00] [height=64.00]
-    LayoutSVGContainer {use} at (0,160) size 64x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,160.00)}]
-      LayoutSVGRect {rect} at (0,160) size 64x64 [fill={[type=SOLID] [color=#CC0000]}] [x=0.00] [y=0.00] [width=64.00] [height=64.00]
-    LayoutSVGContainer {use} at (64,160) size 64x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,160.00)}]
-      LayoutSVGRect {rect} at (64,160) size 64x64 [fill={[type=SOLID] [color=#009900]}] [x=64.00] [y=0.00] [width=64.00] [height=64.00]
-    LayoutSVGContainer {use} at (128,160) size 64x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,160.00)}]
-      LayoutSVGRect {rect} at (128,160) size 64x64 [fill={[type=SOLID] [color=#0000FF]}] [x=128.00] [y=0.00] [width=64.00] [height=64.00]
+    LayoutSVGContainer {use} at (0,0) size 192x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,80.00)}]
+      LayoutSVGContainer {g} at (0,0) size 192x64
+        LayoutSVGRect {rect} at (0,0) size 64x64 [fill={[type=SOLID] [color=#CC0000]}] [x=0.00] [y=0.00] [width=64.00] [height=64.00]
+        LayoutSVGRect {rect} at (64,0) size 64x64 [fill={[type=SOLID] [color=#009900]}] [x=64.00] [y=0.00] [width=64.00] [height=64.00]
+        LayoutSVGRect {rect} at (128,0) size 64x64 [fill={[type=SOLID] [color=#0000FF]}] [x=128.00] [y=0.00] [width=64.00] [height=64.00]
+    LayoutSVGContainer {use} at (0,0) size 64x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,160.00)}]
+      LayoutSVGRect {rect} at (0,0) size 64x64 [fill={[type=SOLID] [color=#CC0000]}] [x=0.00] [y=0.00] [width=64.00] [height=64.00]
+    LayoutSVGContainer {use} at (64,0) size 64x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,160.00)}]
+      LayoutSVGRect {rect} at (64,0) size 64x64 [fill={[type=SOLID] [color=#009900]}] [x=64.00] [y=0.00] [width=64.00] [height=64.00]
+    LayoutSVGContainer {use} at (128,0) size 64x64 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,160.00)}]
+      LayoutSVGRect {rect} at (128,0) size 64x64 [fill={[type=SOLID] [color=#0000FF]}] [x=128.00] [y=0.00] [width=64.00] [height=64.00]
     LayoutSVGContainer {use} at (0,0) size 0x0 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,240.00)}]
     LayoutSVGContainer {use} at (0,0) size 0x0 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,240.00)}]
     LayoutSVGContainer {use} at (0,0) size 0x0 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,240.00)}]