Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/linux/svg/text/text-selection-path-01-b-expected.txt

 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
   LayoutSVGRoot {svg} at (0,0) size 800x600
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-        LayoutSVGContainer {use} at (330,22) size 368x164
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-        LayoutSVGText {text} at (167,-7) size 206x120 contains 1 chunk(s)
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+        LayoutSVGContainer {use} at (199,13.20) size 219x97.90
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           LayoutSVGTextPath {textPath} at (0,0) size 205x120
-            LayoutSVGInlineText {#text} at (0,0) size 205x120
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               chunk 1 text run 4 at (233.49,36.27) startOffset 3 endOffset 4 width 12.60: "t"
               chunk 1 text run 5 at (242.28,30.56) startOffset 4 endOffset 5 width 8.40: " "
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               chunk 1 text run 14 at (353.02,102.49) startOffset 13 endOffset 14 width 21.00: "h"
           LayoutSVGInlineText {#text} at (0,0) size 0x0
-      LayoutSVGContainer {g} at (0,82) size 486x271
-        LayoutSVGContainer {use} at (55,116) size 367x164
-          LayoutSVGPath {path} at (55,116) size 367x164 [stroke={[type=SOLID] [color=#0000FF]}] [data="M 33.5 145.8 C 41 123 70.3 69.7 104.5 86.8 C 121 95 133 116 144.5 129.8 C 156.2 144.4 173 155.5 190.5 159.8 C 221.8 167.6 231 146.9 252.5 130.8"]
-        LayoutSVGText {text} at (-9,49) size 216x121 contains 1 chunk(s)
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+        LayoutSVGContainer {use} at (33.50,69.70) size 219x97.90
+          LayoutSVGPath {path} at (33.50,69.70) size 219x97.90 [stroke={[type=SOLID] [color=#0000FF]}] [data="M 33.5 145.8 C 41 123 70.3 69.7 104.5 86.8 C 121 95 133 116 144.5 129.8 C 156.2 144.4 173 155.5 190.5 159.8 C 221.8 167.6 231 146.9 252.5 130.8"]
+        LayoutSVGText {text} at (-8.64,49.55) size 215.59x119.86 contains 1 chunk(s)
           LayoutSVGTextPath {textPath} at (0,0) size 216x120
             LayoutSVGTSpan {tspan} at (0,0) size 57x58
-              LayoutSVGInlineText {#text} at (0,37) size 57x58
+              LayoutSVGInlineText {#text} at (-8.64,86.73) size 56.34x57.19
                 chunk 1 text run 1 at (37.53,135.50) startOffset 0 endOffset 1 width 22.20: "T"
                 chunk 1 text run 2 at (46.73,118.03) startOffset 1 endOffset 2 width 17.40: "e"
             LayoutSVGTSpan {tspan} at (0,0) size 44x41
-              LayoutSVGInlineText {#text} at (34,25) size 44x41
+              LayoutSVGInlineText {#text} at (25.56,75.05) size 43.27x40.39
                 chunk 1 text run 1 at (57.08,103.54) startOffset 0 endOffset 1 width 18.00: "x"
-            LayoutSVGInlineText {#text} at (50,0) size 165x120
+            LayoutSVGInlineText {#text} at (42.03,49.55) size 164.92x119.86
               chunk 1 text run 1 at (67.95,92.75) startOffset 0 endOffset 1 width 12.60: "t"
               chunk 1 text run 2 at (76.74,87.05) startOffset 1 endOffset 2 width 8.40: " "
               chunk 1 text run 3 at (89.94,83.50) startOffset 2 endOffset 3 width 19.20: "o"
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               chunk 1 text run 5 at (119.95,98.84) startOffset 4 endOffset 5 width 8.40: " "
               chunk 1 text run 6 at (128.58,108.97) startOffset 5 endOffset 6 width 18.00: "a"
               chunk 1 text run 7 at (136.56,119.54) startOffset 6 endOffset 7 width 8.40: " "
               chunk 1 text run 8 at (145.36,130.85) startOffset 7 endOffset 8 width 20.40: "p"
               chunk 1 text run 9 at (159.13,144.22) startOffset 8 endOffset 9 width 18.00: "a"
               chunk 1 text run 10 at (171.96,152.60) startOffset 9 endOffset 10 width 12.60: "t"
               chunk 1 text run 11 at (187.48,158.99) startOffset 10 endOffset 11 width 21.00: "h"
           LayoutSVGInlineText {#text} at (0,0) size 0x0
-        LayoutSVGRect {rect} at (27,280) size 459x71 [stroke={[type=SOLID] [color=#000000]}] [x=17.00] [y=169.00] [width=274.00] [height=41.00]
-        LayoutSVGText {text} at (19,166) size 215x24 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 215x23
+        LayoutSVGRect {rect} at (17,169) size 274x41 [stroke={[type=SOLID] [color=#000000]}] [x=17.00] [y=169.00] [width=274.00] [height=41.00]
+        LayoutSVGText {text} at (19,166.41) size 214.80x22.80 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (19,166.41) size 214.80x22.80
             chunk 1 text run 1 at (19.00,185.00) startOffset 0 endOffset 25 width 214.80: "'tspan' subelement inside"
-        LayoutSVGText {text} at (19,188) size 187x24 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 187x23
+        LayoutSVGText {text} at (19,188.41) size 186.59x22.80 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (19,188.41) size 186.59x22.80
             chunk 1 text run 1 at (19.00,207.00) startOffset 0 endOffset 23 width 186.60: "the 'textPath' element."
-      LayoutSVGContainer {g} at (188,352) size 501x134
-        LayoutSVGContainer {use} at (188,385) size 501x7
-          LayoutSVGPath {path} at (188,385) size 501x7 [stroke={[type=SOLID] [color=#0000FF] [stroke width=4.00]}] [data="M 113 233 L 413 233"]
-        LayoutSVGText {text} at (212,211) size 174x28 contains 1 chunk(s)
+      LayoutSVGContainer {g} at (113,211.41) size 300x79.80
+        LayoutSVGContainer {use} at (113,233) size 300x0
+          LayoutSVGPath {path} at (113,233) size 300x0 [stroke={[type=SOLID] [color=#0000FF] [stroke width=4.00]}] [data="M 113 233 L 413 233"]
+        LayoutSVGText {text} at (212,211.41) size 173.72x27 contains 1 chunk(s)
           LayoutSVGTextPath {textPath} at (0,0) size 174x27
-            LayoutSVGInlineText {#text} at (0,0) size 174x27
+            LayoutSVGInlineText {#text} at (212,211.41) size 173.72x27
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               chunk 1 text run 7 at (289.14,233.00) startOffset 6 endOffset 7 width 10.80: "x"
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               chunk 1 text run 14 at (359.94,233.00) startOffset 13 endOffset 14 width 13.20: "a"
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               chunk 1 text run 16 at (379.44,233.00) startOffset 15 endOffset 16 width 12.60: "h"
           LayoutSVGInlineText {#text} at (0,0) size 0x0
-        LayoutSVGRect {rect} at (195,415) size 436x71 [stroke={[type=SOLID] [color=#000000]}] [x=118.00] [y=250.00] [width=260.00] [height=41.00]
-        LayoutSVGText {text} at (120,248) size 226x24 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 226x23
+        LayoutSVGRect {rect} at (118,250) size 260x41 [stroke={[type=SOLID] [color=#000000]}] [x=118.00] [y=250.00] [width=260.00] [height=41.00]
+        LayoutSVGText {text} at (120,248.41) size 225.83x22.80 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (120,248.41) size 225.83x22.80
             chunk 1 text run 1 at (120.00,267.00) startOffset 0 endOffset 30 width 225.84: "'startOffset' attribute of the"
-        LayoutSVGText {text} at (120,268) size 155x24 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 155x23
+        LayoutSVGText {text} at (120,268.41) size 154.80x22.80 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (120,268.41) size 154.80x22.80
             chunk 1 text run 1 at (120.00,287.00) startOffset 0 endOffset 19 width 154.80: "'textPath' element."
-    LayoutSVGText {text} at (10,304) size 266x46 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 266x46
+    LayoutSVGText {text} at (10,304) size 265.80x45.59 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,304) size 265.80x45.59
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 265.80: "$Revision: 1.9 $"
-    LayoutSVGRect {rect} at (0,0) size 800x600 [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]
 selection start: position 0 of child 0 {#text} of child 1 {textPath} of child 3 {text} of child 3 {g} of child 13 {g} of child 30 {svg} of document
 selection end:   position 16 of child 0 {#text} of child 15 {text} of child 30 {svg} of document