Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/svg/custom/getscreenctm-in-scrollable-div-area-nested-expected.txt

Index: third_party/WebKit/LayoutTests/svg/custom/getscreenctm-in-scrollable-div-area-nested-expected.txt
diff --git a/third_party/WebKit/LayoutTests/svg/custom/getscreenctm-in-scrollable-div-area-nested-expected.txt b/third_party/WebKit/LayoutTests/svg/custom/getscreenctm-in-scrollable-div-area-nested-expected.txt
deleted file mode 100644
index 2afc1e3573fc9ab09240cecd0adc31e3b82c78ce..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/svg/custom/getscreenctm-in-scrollable-div-area-nested-expected.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-layer at (0,0) size 800x600
-  LayoutView at (0,0) size 800x600
-layer at (0,0) size 800x550
-  LayoutBlockFlow {html} at (0,0) size 800x550
-    LayoutBlockFlow {body} at (0,0) size 800x550
-layer at (0,0) size 750x550 clip at (0,0) size 735x535 scrollY 300.00 scrollHeight 1000
-  LayoutBlockFlow {div} at (0,0) size 750x550
-layer at (0,-300) size 725x1000 backgroundClip at (0,0) size 725x535 clip at (0,0) size 710x535 scrollY 1400.00 scrollHeight 4100
-  LayoutBlockFlow {div} at (0,0) size 725x1000
-    LayoutSVGRoot {svg} at (266,250) size 268x154
-      LayoutSVGRect {rect} at (350,250) size 100x100 [fill={[type=SOLID] [color=#000080] [opacity=0.50]}] [x=350.00] [y=1950.00] [width=100.00] [height=100.00]
-      LayoutSVGEllipse {circle} at (350,250) size 100x100 [fill={[type=SOLID] [color=#F08080]}] [cx=400.00] [cy=2000.00] [r=50.00]
-      LayoutSVGText {text} at (266,2086) size 268x18 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 267x18
-          chunk 1 (middle anchor) text run 1 at (266.93,2100.00) startOffset 0 endOffset 46 width 266.13: "The test passes if the circle sits in the rect"
-    LayoutText {#text} at (0,0) size 0x0