Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/svg/custom/convolution-crash-expected.txt

Index: third_party/WebKit/LayoutTests/svg/custom/convolution-crash-expected.txt
diff --git a/third_party/WebKit/LayoutTests/svg/custom/convolution-crash-expected.txt b/third_party/WebKit/LayoutTests/svg/custom/convolution-crash-expected.txt
index 19ff26e0a25a644562b6c45884731e5e889bd19f..75a2383c0917b5b139b1478dc9ebd79527d5b6ca 100644
--- a/third_party/WebKit/LayoutTests/svg/custom/convolution-crash-expected.txt
+++ b/third_party/WebKit/LayoutTests/svg/custom/convolution-crash-expected.txt
@@ -1,11 +1,11 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (0,0) size 110x110
+  LayoutSVGRoot {svg} at (0,0) size 800x600
     LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourceFilter {filter} [id="foo"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
         [feConvolveMatrix order="width=3 height=3" kernelMatrix="[0.00, 0.00, 0.00, 0.00, 1.00, 0.00, 0.00, 0.00, -1.00]" divisor="1.00" bias="0.00" target="(1,1)" edgeMode="DUPLICATE" preserveAlpha="0"]
           [SourceGraphic]
-    LayoutSVGImage {image} at (0,0) size 3x4
+    LayoutSVGImage {image} at (0,0) size 2x3
       [filter="foo"] LayoutSVGResourceFilter {filter} at (-0.20,-0.30) size 2.40x3.60
     LayoutSVGRect {rect} at (10,10) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=10.00] [y=10.00] [width=100.00] [height=100.00]