Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/win/svg/W3C-SVG-1.1/extend-namespace-01-f-expected.txt

 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 (63,16) size 354x264
-      LayoutSVGContainer {g} at (63,16) size 354x17
+    LayoutSVGContainer {g} at (63.59,16) size 352.78x262.05
+      LayoutSVGContainer {g} at (63.59,16) size 352.78x17
         LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
-        LayoutSVGText {text} at (63,16) size 354x17 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 353x17
+        LayoutSVGText {text} at (63.59,16) size 352.78x17 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (63.59,16) size 352.78x17
             chunk 1 (middle anchor) text run 1 at (63.61,30.00) startOffset 0 endOffset 51 width 352.79: "Pie chart built from data in a different namespace."
-      LayoutSVGContainer {g} at (111,49) size 258x231
-        LayoutSVGPath {path} at (263,76) size 106x83 [transform={m=((1.00,0.00)(0.00,1.00)) t=(27.00,-13.00)}] [stroke={[type=SOLID] [color=#0000FF] [stroke width=3.00]}] [fill={[type=SOLID] [color=#FF8888]}] [data="M 240 170 L 340 170 A 100 100 0 0 0 303 92 Z"]
-        LayoutSVGText {text} at (285,129) size 28x16 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 28x16
+      LayoutSVGContainer {g} at (111.17,49.75) size 256x228.29
+        LayoutSVGPath {path} at (240,92) size 100.16x78 [transform={m=((1.00,0.00)(0.00,1.00)) t=(27.00,-13.00)}] [stroke={[type=SOLID] [color=#0000FF] [stroke width=3.00]}] [fill={[type=SOLID] [color=#FF8888]}] [data="M 240 170 L 340 170 A 100 100 0 0 0 303 92 Z"]
+        LayoutSVGText {text} at (285,129) size 28x16 [transform={m=((1.00,0.00)(0.00,1.00)) t=(27.00,-13.00)}] contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (285,129) size 28x16
             chunk 1 (middle anchor) text run 1 at (285.00,142.00) startOffset 0 endOffset 4 width 28.00: "East"
-        LayoutSVGPath {path} at (190,49) size 115x123 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#6D6D6D]}] [data="M 240 170 L 303 92 A 100 100 0 0 0 192 82 Z"]
+        LayoutSVGPath {path} at (192,49.75) size 111x120.25 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#6D6D6D]}] [data="M 240 170 L 303 92 A 100 100 0 0 0 192 82 Z"]
         LayoutSVGText {text} at (229,92) size 34x16 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 34x16
+          LayoutSVGInlineText {#text} at (229,92) size 34x16
             chunk 1 (middle anchor) text run 1 at (229.00,105.00) startOffset 0 endOffset 5 width 34.00: "North"
-        LayoutSVGPath {path} at (111,80) size 131x132 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#929292]}] [data="M 240 170 L 192 82 A 100 100 0 0 0 148 210 Z"]
-        LayoutSVGText {text} at (162,136) size 32x16 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 32x16
+        LayoutSVGPath {path} at (111.17,82) size 128.83x128 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#929292]}] [data="M 240 170 L 192 82 A 100 100 0 0 0 148 210 Z"]
+        LayoutSVGText {text} at (162.13,136) size 31.73x16 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (162.13,136) size 31.73x16
             chunk 1 (middle anchor) text run 1 at (162.13,149.00) startOffset 0 endOffset 4 width 31.75: "West"
-        LayoutSVGPath {path} at (146,168) size 96x102 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#B6B6B6]}] [data="M 240 170 L 148 210 A 100 100 0 0 0 219 268 Z"]
+        LayoutSVGPath {path} at (148,170) size 92x98 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#B6B6B6]}] [data="M 240 170 L 148 210 A 100 100 0 0 0 219 268 Z"]
         LayoutSVGText {text} at (176,207) size 46x16 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 46x16
+          LayoutSVGInlineText {#text} at (176,207) size 46x16
             chunk 1 (middle anchor) text run 1 at (176.00,220.00) startOffset 0 endOffset 7 width 46.00: "Central"
-        LayoutSVGPath {path} at (217,169) size 125x111 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#DBDBDB]}] [data="M 240 170 L 219 268 A 100 100 0 0 0 340 170 Z"]
-        LayoutSVGText {text} at (262,207) size 38x16 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 37x16
+        LayoutSVGPath {path} at (219,170) size 121.11x108.05 [stroke={[type=SOLID] [color=#000000] [stroke width=2.00]}] [fill={[type=SOLID] [color=#DBDBDB]}] [data="M 240 170 L 219 268 A 100 100 0 0 0 340 170 Z"]
+        LayoutSVGText {text} at (262.50,207) size 37x16 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (262.50,207) size 37x16
             chunk 1 (middle anchor) text run 1 at (262.50,220.00) startOffset 0 endOffset 5 width 37.00: "South"
-    LayoutSVGText {text} at (10,304) size 264x45 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 264x45
+    LayoutSVGText {text} at (10,304) size 263.33x45 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,304) size 263.33x45
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 263.34: "$Revision: 1.3 $"
-    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]