Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/win/svg/text/text-selection-tselect-02-f-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
-    LayoutSVGContainer {g} at (16,192) size 718x208
+    LayoutSVGContainer {g} at (10,115.61) size 430x124.39
       LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
-      LayoutSVGContainer {g} at (16,192) size 718x208 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,60.00)}]
-        LayoutSVGText {text} at (10,55) size 177x19 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 177x18
+      LayoutSVGContainer {g} at (10,55.61) size 430x124.39 [transform={m=((1.00,0.00)(0.00,1.00)) t=(0.00,60.00)}]
+        LayoutSVGText {text} at (10,55.61) size 176.81x18 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (10,55.61) size 176.81x18
             chunk 1 text run 1 at (10.00,70.00) startOffset 0 endOffset 26 width 176.82: "StartIndex: 0. NumChars: 9"
-        LayoutSVGText {text} at (10,85) size 371x54 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 371x53
+        LayoutSVGText {text} at (10,85.41) size 370.06x52.80 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (10,85.41) size 370.06x52.80
             chunk 1 text run 1 at (10.00,128.00) startOffset 0 endOffset 4 width 78.61: "abc "
             chunk 1 text run 1 at (88.61,128.00) startOffset 0 endOffset 4 width 68.11 RTL: " \x{5D3}\x{5D4}\x{5D5}"
             chunk 1 text run 1 at (156.72,128.00) startOffset 0 endOffset 3 width 72.00: "123"
             chunk 1 text run 1 at (228.72,128.00) startOffset 0 endOffset 4 width 73.05 RTL: "\x{5D0}\x{5D1}\x{5D2} "
             chunk 1 text run 1 at (301.77,128.00) startOffset 0 endOffset 4 width 73.29: " def"
-        LayoutSVGContainer {g} at (16,366) size 718x34
-          LayoutSVGRect {rect} at (16,366) size 168x34 [fill={[type=SOLID] [color=#0000FF]}] [x=10.00] [y=160.00] [width=100.00] [height=20.00]
-          LayoutSVGText {text} at (18,160) size 83x19 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 82x18
+        LayoutSVGContainer {g} at (10,160) size 430x20
+          LayoutSVGRect {rect} at (10,160) size 100x20 [fill={[type=SOLID] [color=#0000FF]}] [x=10.00] [y=160.00] [width=100.00] [height=20.00]
+          LayoutSVGText {text} at (18.98,160.61) size 82x18 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (18.98,160.61) size 82x18
               chunk 1 (middle anchor) text run 1 at (19.00,175.00) startOffset 0 endOffset 12 width 82.00: "startIndex++"
-          LayoutSVGRect {rect} at (200,366) size 167x34 [fill={[type=SOLID] [color=#0000FF]}] [x=120.00] [y=160.00] [width=100.00] [height=20.00]
-          LayoutSVGText {text} at (132,160) size 76x19 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 75x18
+          LayoutSVGRect {rect} at (120,160) size 100x20 [fill={[type=SOLID] [color=#0000FF]}] [x=120.00] [y=160.00] [width=100.00] [height=20.00]
+          LayoutSVGText {text} at (132.69,160.61) size 74.61x18 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (132.69,160.61) size 74.61x18
               chunk 1 (middle anchor) text run 1 at (132.69,175.00) startOffset 0 endOffset 12 width 74.61: "startIndex--"
-          LayoutSVGRect {rect} at (383,366) size 167x34 [fill={[type=SOLID] [color=#0000FF]}] [x=230.00] [y=160.00] [width=100.00] [height=20.00]
-          LayoutSVGText {text} at (238,160) size 84x19 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 84x18
+          LayoutSVGRect {rect} at (230,160) size 100x20 [fill={[type=SOLID] [color=#0000FF]}] [x=230.00] [y=160.00] [width=100.00] [height=20.00]
+          LayoutSVGText {text} at (238.09,160.61) size 83.80x18 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (238.09,160.61) size 83.80x18
               chunk 1 (middle anchor) text run 1 at (238.10,175.00) startOffset 0 endOffset 10 width 83.80: "numChars++"
-          LayoutSVGRect {rect} at (566,366) size 168x34 [fill={[type=SOLID] [color=#0000FF]}] [x=340.00] [y=160.00] [width=100.00] [height=20.00]
-          LayoutSVGText {text} at (351,160) size 78x19 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 77x18
+          LayoutSVGRect {rect} at (340,160) size 100x20 [fill={[type=SOLID] [color=#0000FF]}] [x=340.00] [y=160.00] [width=100.00] [height=20.00]
+          LayoutSVGText {text} at (351.78,160.61) size 76.41x18 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (351.78,160.61) size 76.41x18
               chunk 1 (middle anchor) text run 1 at (351.79,175.00) startOffset 0 endOffset 10 width 76.41: "numChars--"
-    LayoutSVGText {text} at (10,304) size 264x45 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 264x44
+    LayoutSVGText {text} at (10,304.61) size 263.31x43.80 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,304.61) size 263.31x43.80
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 263.31: "$Revision: 1.2 $"
-    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 4 of child 0 {#text} of child 3 {text} of child 3 {g} of child 35 {g} of child 1 {svg} of document
 selection end:   position 13 of child 0 {#text} of child 3 {text} of child 3 {g} of child 35 {g} of child 1 {svg} of document