Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/animate-elem-05-t-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 (7,0.84) size 66.36x50.83
+      LayoutSVGText {text} at (8,0.84) size 65.36x8.83 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (8,0.84) size 65.36x8.83
+          chunk 1 text run 1 at (8.00,8.00) startOffset 0 endOffset 18 width 65.37: "Test a motion path"
+      LayoutSVGText {text} at (11,10.84) size 59.53x8.83 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (11,10.84) size 59.53x8.83
+          chunk 1 text run 1 at (11.00,18.00) startOffset 0 endOffset 19 width 59.53: "'values' attribute."
+      LayoutSVGContainer {g} at (7,20) size 63x31.67
+        LayoutSVGPath {path} at (15,30) size 50x13 [stroke={[type=SOLID] [color=#000000]}] [data="M 15 43 L 40 30 L 65 30"]
+        LayoutSVGRect {rect} at (10,33) size 10x10 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#FFCCCC]}] [x=10.00] [y=33.00] [width=10.00] [height=10.00]
+        LayoutSVGText {text} at (7,42.84) size 21.34x8.83 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (7,42.84) size 21.34x8.83
+            chunk 1 text run 1 at (7.00,50.00) startOffset 0 endOffset 6 width 21.34: "0 sec."
+        LayoutSVGRect {rect} at (35,20) size 10x10 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#FFCCCC]}] [x=35.00] [y=20.00] [width=10.00] [height=10.00]
+        LayoutSVGText {text} at (37,29.84) size 9.11x8.83 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (37,29.84) size 9.11x8.83
+            chunk 1 text run 1 at (37.00,37.00) startOffset 0 endOffset 2 width 9.12: "3+"
+        LayoutSVGRect {rect} at (60,20) size 10x10 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#FFCCCC]}] [x=60.00] [y=20.00] [width=10.00] [height=10.00]
+        LayoutSVGText {text} at (60,29.84) size 9.11x8.83 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (60,29.84) size 9.11x8.83
+            chunk 1 text run 1 at (60.00,37.00) startOffset 0 endOffset 2 width 9.12: "6+"
+        LayoutSVGPath {path} at (-5,-10) size 10x10 [transform={m=((1.00,0.00)(0.00,1.00)) t=(15.00,43.00)}] [stroke={[type=SOLID] [color=#FF0000]}] [fill={[type=SOLID] [color=#0000FF]}] [data="M -5 0 L 0 -10 L 5 0 Z"]
+    LayoutSVGText {text} at (5,51.67) size 39.50x6.83 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (5,51.67) size 39.50x6.83
+        chunk 1 text run 1 at (5.00,57.00) startOffset 0 endOffset 16 width 39.50: "$Revision: 1.8 $"
+    LayoutSVGRect {rect} at (1,1) size 78x58 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=78.00] [height=58.00]