Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-01-b-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-01-b-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-01-b-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-01-b-expected.txt
index 3bb44cb628431462fe54b269bf4a5c1b89d2fef2..3066bd8c8c433cf430d01335cd8447b7d82954b7 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-01-b-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-01-b-expected.txt
@@ -2,20 +2,20 @@ 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 (20,20) size 440x247
+    LayoutSVGContainer {g} at (20,20) size 440x246.31
       LayoutSVGResourceLinearGradient {linearGradient} [id="Grad1a"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
         LayoutSVGGradientStop {stop} [offset=0.00] [color=#0000FF]
         LayoutSVGGradientStop {stop} [offset=1.00] [color=#FF0000]
       LayoutSVGResourceLinearGradient {linearGradient} [id="Grad1b"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
       LayoutSVGRect {rect} at (20,20) size 440x80 [fill={[type=LINEAR-GRADIENT] [id="Grad1a"]}] [x=20.00] [y=20.00] [width=440.00] [height=80.00]
-      LayoutSVGText {text} at (20,103) size 209x34 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 209x34
+      LayoutSVGText {text} at (20,103) size 208.47x33.31 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (20,103) size 208.47x33.31
           chunk 1 text run 1 at (20.00,130.00) startOffset 0 endOffset 16 width 208.48: "Linear gradient."
       LayoutSVGRect {rect} at (20,150) size 440x80 [fill={[type=LINEAR-GRADIENT] [id="Grad1b"]}] [x=20.00] [y=150.00] [width=440.00] [height=80.00]
-      LayoutSVGText {text} at (20,233) size 372x34 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 372x34
+      LayoutSVGText {text} at (20,233) size 371.91x33.31 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (20,233) size 371.91x33.31
           chunk 1 text run 1 at (20.00,260.00) startOffset 0 endOffset 27 width 371.91: "Referencing gradient below."
-    LayoutSVGText {text} at (10,304) size 264x46 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 264x46
+    LayoutSVGText {text} at (10,304) size 263.33x46 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,304) size 263.33x46
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 263.34: "$Revision: 1.5 $"
-    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]