Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/custom/masking-clipping-hidpi-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/custom/masking-clipping-hidpi-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/masking-clipping-hidpi-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/masking-clipping-hidpi-expected.txt
index 3af958b7955a4c70fde7b9676a1e14187ddd7d6e..552422a180644e224b1d69bbbdc230d6327e34f5 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/masking-clipping-hidpi-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/masking-clipping-hidpi-expected.txt
@@ -1,12 +1,12 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (0,0) size 292x362
+  LayoutSVGRoot {svg} at (0,0) size 800x600
     LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourceMasker {mask} [id="textMask"] [maskUnits=objectBoundingBox] [maskContentUnits=userSpaceOnUse]
         LayoutSVGRect {rect} at (0,0) size 800x600 [fill={[type=SOLID] [color=#FFFFFF]}] [x=0.00] [y=0.00] [width=800.00] [height=600.00]
-        LayoutSVGText {text} at (0,-3) size 165x19 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 165x19
+        LayoutSVGText {text} at (0,-2.50) size 164.86x18.50 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (0,-2.50) size 164.86x18.50
             chunk 1 text run 1 at (0.00,12.00) startOffset 0 endOffset 26 width 164.87: "This text should be sharp."
     LayoutSVGRect {rect} at (0,0) size 200x100 [fill={[type=SOLID] [color=#000000]}] [x=0.00] [y=0.00] [width=200.00] [height=100.00]
     LayoutSVGRect {rect} at (0,0) size 200x100 [fill={[type=SOLID] [color=#FFFFFF]}] [x=0.00] [y=0.00] [width=200.00] [height=100.00]
@@ -15,14 +15,14 @@ layer at (0,0) size 800x600
       LayoutSVGResourceLinearGradient {linearGradient} [id="blackGradient"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
         LayoutSVGGradientStop {stop} [offset=0.00] [color=#000000]
         LayoutSVGGradientStop {stop} [offset=1.00] [color=#000000]
-    LayoutSVGText {text} at (0,21) size 292x19 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 292x19
+    LayoutSVGText {text} at (0,21.50) size 291.03x18.50 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (0,21.50) size 291.03x18.50
         chunk 1 text run 1 at (0.00,36.00) startOffset 0 endOffset 47 width 291.04: "This text and the circles should also be sharp."
     LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourceClipper {clipPath} [id="circleClipPath"] [clipPathUnits=objectBoundingBox]
-        LayoutSVGEllipse {circle} at (0,0) size 1x1 [fill={[type=SOLID] [color=#000000]}] [cx=0.25] [cy=0.25] [r=0.20]
-        LayoutSVGEllipse {circle} at (0,0) size 1x1 [fill={[type=SOLID] [color=#000000]}] [cx=0.25] [cy=0.75] [r=0.20]
-    LayoutSVGRect {rect} at (4,65) size 41x90 [fill={[type=SOLID] [color=#000000]}] [x=0.00] [y=60.00] [width=100.00] [height=100.00]
+        LayoutSVGEllipse {circle} at (0.05,0.05) size 0.40x0.40 [fill={[type=SOLID] [color=#000000]}] [cx=0.25] [cy=0.25] [r=0.20]
+        LayoutSVGEllipse {circle} at (0.05,0.55) size 0.40x0.40 [fill={[type=SOLID] [color=#000000]}] [cx=0.25] [cy=0.75] [r=0.20]
+    LayoutSVGRect {rect} at (0,60) size 100x100 [fill={[type=SOLID] [color=#000000]}] [x=0.00] [y=60.00] [width=100.00] [height=100.00]
       [clipPath="circleClipPath"] LayoutSVGResourceClipper {clipPath} at (5,65) size 40x90
     LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourcePattern {pattern} [id="Pattern"] [patternUnits=objectBoundingBox] [patternContentUnits=userSpaceOnUse]