Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/clip-path/clip-path-pixelation-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/clip-path/clip-path-pixelation-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/clip-path/clip-path-pixelation-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/clip-path/clip-path-pixelation-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..502879a7f237ba3df870e7091e4ea2fe2deb17cd
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/clip-path/clip-path-pixelation-expected.txt
@@ -0,0 +1,13 @@
+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
+    LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
+      LayoutSVGResourceClipper {clipPath} [id="clip-circle"] [clipPathUnits=objectBoundingBox]
+        LayoutSVGEllipse {circle} at (0,0) size 0.50x0.50 [fill={[type=SOLID] [color=#000000]}] [cx=0.25] [cy=0.25] [r=0.25]
+        LayoutSVGEllipse {circle} at (0.50,0.50) size 0.50x0.50 [fill={[type=SOLID] [color=#000000]}] [cx=0.75] [cy=0.75] [r=0.25]
+    LayoutSVGText {text} at (52.67,6) size 194.64x18 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (52.67,6) size 194.64x18
+        chunk 1 (middle anchor) text run 1 at (52.68,20.00) startOffset 0 endOffset 30 width 194.65: "This should not look pixelated"
+    LayoutSVGRect {rect} at (1,2) size 10x10 [transform={m=((25.00,0.00)(0.00,25.00)) t=(0.00,0.00)}] [fill={[type=SOLID] [color=#008000]}] [x=1.00] [y=2.00] [width=10.00] [height=10.00]
+      [clipPath="clip-circle"] LayoutSVGResourceClipper {clipPath} at (1,2) size 10x10