Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/filters-example-01-b-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/filters-example-01-b-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/filters-example-01-b-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/filters-example-01-b-expected.txt
index 165b587a0e7da0f3cbdc9f085ea51cfc9e84a9f4..acac969147661fd1941c4f4b92459f436f5df9d8 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/filters-example-01-b-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/filters-example-01-b-expected.txt
@@ -2,8 +2,8 @@ layer at (0,0) size 480x360
   LayoutView at (0,0) size 480x360
 layer at (0,0) size 480x360
   LayoutSVGRoot {svg} at (0,0) size 480x360
-    LayoutSVGContainer {g} at (80,110) size 300x180
-      LayoutSVGViewportContainer {svg} at (80,110) size 300x180
+    LayoutSVGContainer {g} at (80,111.50) size 300x177
+      LayoutSVGViewportContainer {svg} at (0,1) size 200x118
         LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
           LayoutSVGResourceFilter {filter} [id="MyFilter"] [filterUnits=userSpaceOnUse] [primitiveUnits=userSpaceOnUse]
             [feComposite operation="OVER"]
@@ -11,17 +11,17 @@ layer at (0,0) size 480x360
               [feOffset dx="4.00" dy="4.00"]
                 [feGaussianBlur stdDeviation="4.00, 4.00"]
                   [SourceAlpha]
-        LayoutSVGRect {rect} at (80,110) size 300x180 [stroke={[type=SOLID] [color=#0000FF]}] [fill={[type=SOLID] [color=#888888]}] [x=1.00] [y=1.00] [width=198.00] [height=118.00]
-        LayoutSVGContainer {g} at (80,110) size 300x180
+        LayoutSVGRect {rect} at (1,1) size 198x118 [stroke={[type=SOLID] [color=#0000FF]}] [fill={[type=SOLID] [color=#888888]}] [x=1.00] [y=1.00] [width=198.00] [height=118.00]
+        LayoutSVGContainer {g} at (0,30) size 200x60
           [filter="MyFilter"] LayoutSVGResourceFilter {filter} at (0,0) size 200x120
-          LayoutSVGContainer {g} at (80,147) size 300x106
-            LayoutSVGPath {path} at (80,147) size 300x106 [stroke={[type=SOLID] [color=#D90000] [stroke width=10.00]}] [data="M 50 90 C 0 90 0 30 50 30 L 150 30 C 200 30 200 90 150 90 Z"]
-            LayoutSVGPath {path} at (125,170) size 210x60 [fill={[type=SOLID] [color=#D90000]}] [data="M 60 80 C 30 80 30 40 60 40 L 140 40 C 170 40 170 80 140 80 Z"]
-            LayoutSVGContainer {g} at (156,154) size 149x86
-              LayoutSVGText {text} at (52,30) size 97x56 contains 1 chunk(s)
-                LayoutSVGInlineText {#text} at (0,0) size 97x55
+          LayoutSVGContainer {g} at (0,30) size 200x60
+            LayoutSVGPath {path} at (0,30) size 200x60 [stroke={[type=SOLID] [color=#D90000] [stroke width=10.00]}] [data="M 50 90 C 0 90 0 30 50 30 L 150 30 C 200 30 200 90 150 90 Z"]
+            LayoutSVGPath {path} at (30,40) size 140x40 [fill={[type=SOLID] [color=#D90000]}] [data="M 60 80 C 30 80 30 40 60 40 L 140 40 C 170 40 170 80 140 80 Z"]
+            LayoutSVGContainer {g} at (52,30.67) size 96.41x54.66
+              LayoutSVGText {text} at (52,30.67) size 96.41x54.66 contains 1 chunk(s)
+                LayoutSVGInlineText {#text} at (52,30.67) size 96.41x54.66
                   chunk 1 text run 1 at (52.00,76.00) startOffset 0 endOffset 3 width 96.42: "SVG"
-    LayoutSVGText {text} at (10,304) size 264x46 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 264x46
+    LayoutSVGText {text} at (10,304) size 263.33x46 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,304) size 263.33x46
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 263.34: "$Revision: 1.7 $"
-    LayoutSVGRect {rect} at (0,0) size 480x360 [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]