Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/win7/svg/text/bbox-with-glyph-overflow-zoomed-expected.txt

 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x249
   LayoutBlockFlow {HTML} at (0,0) size 800x248.78
     LayoutBlockFlow {BODY} at (14.39,14.39) size 771.22x220
       LayoutText {#text} at (0,0) size 489x32
         text run at (0,0) width 489: "No glyphs should extend outside the rects."
       LayoutBR {BR} at (488,0) size 1x32
-      LayoutSVGRoot {svg} at (45,63) size 155x127
-        LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
-          LayoutSVGPath {path} at (14,47) size 1x1 [fill={[type=SOLID] [color=#000000]}] [data="M 20 20 L 200 20"]
-        LayoutSVGText {text} at (17,9) size 86x14 contains 1 chunk(s)
+      LayoutSVGRoot {svg} at (0,33) size 360x180
+        LayoutSVGHiddenContainer {defs} at (20,20) size 180x0
+          LayoutSVGPath {path} at (20,20) size 180x0 [fill={[type=SOLID] [color=#000000]}] [data="M 20 20 L 200 20"]
+        LayoutSVGText {text} at (17.77,9.45) size 84.42x13.33 contains 1 chunk(s)
           LayoutSVGTextPath {textPath} at (0,0) size 85x14
-            LayoutSVGInlineText {#text} at (0,0) size 85x14
+            LayoutSVGInlineText {#text} at (17.77,9.45) size 84.42x13.33
               chunk 1 text run 1 at (21.67,20.00) startOffset 0 endOffset 1 width 3.33: "f"
               chunk 1 text run 2 at (25.00,20.00) startOffset 1 endOffset 2 width 3.33: "f"
               chunk 1 text run 3 at (28.33,20.00) startOffset 2 endOffset 3 width 3.33: "f"
               chunk 1 text run 4 at (31.66,20.00) startOffset 3 endOffset 4 width 3.33: "f"
               chunk 1 text run 5 at (35.00,20.00) startOffset 4 endOffset 5 width 3.33: "f"
               chunk 1 text run 6 at (38.33,20.00) startOffset 5 endOffset 6 width 3.33: "f"
               chunk 1 text run 7 at (41.66,20.00) startOffset 6 endOffset 7 width 3.33: "f"
               chunk 1 text run 8 at (44.99,20.00) startOffset 7 endOffset 8 width 3.33: "f"
               chunk 1 text run 9 at (48.33,20.00) startOffset 8 endOffset 9 width 3.33: "f"
               chunk 1 text run 10 at (51.66,20.00) startOffset 9 endOffset 10 width 3.33: "f"
               chunk 1 text run 11 at (54.99,20.00) startOffset 10 endOffset 11 width 3.33: "f"
               chunk 1 text run 12 at (58.32,20.00) startOffset 11 endOffset 12 width 3.33: "f"
               chunk 1 text run 13 at (61.66,20.00) startOffset 12 endOffset 13 width 3.33: "f"
               chunk 1 text run 14 at (64.99,20.00) startOffset 13 endOffset 14 width 3.33: "f"
               chunk 1 text run 15 at (68.32,20.00) startOffset 14 endOffset 15 width 3.33: "f"
               chunk 1 text run 16 at (71.65,20.00) startOffset 15 endOffset 16 width 3.33: "f"
               chunk 1 text run 17 at (74.99,20.00) startOffset 16 endOffset 17 width 3.33: "f"
               chunk 1 text run 18 at (78.32,20.00) startOffset 17 endOffset 18 width 3.33: "f"
               chunk 1 text run 19 at (81.65,20.00) startOffset 18 endOffset 19 width 3.33: "f"
               chunk 1 text run 20 at (84.98,20.00) startOffset 19 endOffset 20 width 3.33: "f"
               chunk 1 text run 21 at (88.31,20.00) startOffset 20 endOffset 21 width 3.33: "f"
               chunk 1 text run 22 at (91.65,20.00) startOffset 21 endOffset 22 width 3.33: "f"
               chunk 1 text run 23 at (94.98,20.00) startOffset 22 endOffset 23 width 3.33: "f"
               chunk 1 text run 24 at (98.31,20.00) startOffset 23 endOffset 24 width 3.33: "f"
           LayoutSVGInlineText {#text} at (0,0) size 0x0
-        LayoutSVGText {text} at (17,28) size 68x27 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,10) size 25x14
+        LayoutSVGText {text} at (17.77,28.89) size 67.20x26.11 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (17.77,39.45) size 24.44x13.33
             chunk 1 text run 1 at (20.00,50.00) startOffset 0 endOffset 6 width 19.99: "ffffff"
           LayoutSVGTSpan {tspan} at (0,0) size 50x27
-            LayoutSVGInlineText {#text} at (18,0) size 49x27
+            LayoutSVGInlineText {#text} at (36.09,28.89) size 48.88x26.11
               chunk 1 text run 1 at (39.99,50.00) startOffset 0 endOffset 6 width 40.00: "ffffff"
-        LayoutSVGText {text} at (20,61) size 34x18 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 34x17
+        LayoutSVGText {text} at (20,61.67) size 33.50x16.66 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (20,61.67) size 33.50x16.66
             chunk 1 text run 1 at (20.00,75.00) startOffset 0 endOffset 5 width 32.06: "'faQ'"
-        LayoutSVGRect {rect} at (45,63) size 155x27 [stroke={[type=SOLID] [color=#008000]}] [fill={[type=SOLID] [color=#00000000]}] [x=17.77] [y=9.45] [width=84.42] [height=13.33]
-        LayoutSVGRect {rect} at (45,98) size 124x50 [stroke={[type=SOLID] [color=#008000]}] [fill={[type=SOLID] [color=#00000000]}] [x=17.77] [y=28.89] [width=67.20] [height=26.11]
-        LayoutSVGRect {rect} at (49,157) size 64x33 [stroke={[type=SOLID] [color=#008000]}] [fill={[type=SOLID] [color=#00000000]}] [x=20.00] [y=61.67] [width=33.50] [height=16.66]
+        LayoutSVGRect {rect} at (17.77,9.45) size 84.42x13.33 [stroke={[type=SOLID] [color=#008000]}] [fill={[type=SOLID] [color=#00000000]}] [x=17.77] [y=9.45] [width=84.42] [height=13.33]
+        LayoutSVGRect {rect} at (17.77,28.89) size 67.20x26.11 [stroke={[type=SOLID] [color=#008000]}] [fill={[type=SOLID] [color=#00000000]}] [x=17.77] [y=28.89] [width=67.20] [height=26.11]
+        LayoutSVGRect {rect} at (20,61.67) size 33.50x16.66 [stroke={[type=SOLID] [color=#008000]}] [fill={[type=SOLID] [color=#00000000]}] [x=20.00] [y=61.67] [width=33.50] [height=16.66]
       LayoutText {#text} at (0,0) size 0x0
       LayoutText {#text} at (0,0) size 0x0