Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/custom/gradient-deep-referencing-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/custom/gradient-deep-referencing-expected.txt
diff --git a/third_party/WebKit/LayoutTests/svg/custom/gradient-deep-referencing-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/gradient-deep-referencing-expected.txt
similarity index 74%
rename from third_party/WebKit/LayoutTests/svg/custom/gradient-deep-referencing-expected.txt
rename to third_party/WebKit/LayoutTests/platform/mac/svg/custom/gradient-deep-referencing-expected.txt
index 5710f0d46cd56768547102a6cca4858159106cb4..5575f22f25b5b89f26bb3b34d96e3f5ea58ce6ef 100644
--- a/third_party/WebKit/LayoutTests/svg/custom/gradient-deep-referencing-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/gradient-deep-referencing-expected.txt
@@ -1,7 +1,7 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (10,10) size 452x144
+  LayoutSVGRoot {svg} at (0,0) size 800x600
     LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourceLinearGradient {linearGradient} [id="gradient1f"] [gradientUnits=userSpaceOnUse] [start=(0,100)] [end=(100,100)]
       LayoutSVGResourceLinearGradient {linearGradient} [id="gradient1e"] [gradientUnits=userSpaceOnUse] [start=(0,100)] [end=(100,0)]
@@ -15,8 +15,8 @@ layer at (0,0) size 800x600
       LayoutSVGResourceLinearGradient {linearGradient} [id="gradient2"] [gradientUnits=userSpaceOnUse] [start=(0,100)] [end=(100,100)]
         LayoutSVGGradientStop {stop} [offset=0.00] [color=#FF0000]
         LayoutSVGGradientStop {stop} [offset=1.00] [color=#0000FF]
-    LayoutSVGRect {rect} at (50,10) size 100x100 [transform={m=((1.00,0.00)(0.00,1.00)) t=(50.00,10.00)}] [fill={[type=LINEAR-GRADIENT] [id="gradient1"]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
-    LayoutSVGRect {rect} at (200,10) size 100x100 [transform={m=((1.00,0.00)(0.00,1.00)) t=(200.00,10.00)}] [fill={[type=LINEAR-GRADIENT] [id="gradient2"]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
-    LayoutSVGText {text} at (10,136) size 452x18 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 452x18
+    LayoutSVGRect {rect} at (0,0) size 100x100 [transform={m=((1.00,0.00)(0.00,1.00)) t=(50.00,10.00)}] [fill={[type=LINEAR-GRADIENT] [id="gradient1"]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+    LayoutSVGRect {rect} at (0,0) size 100x100 [transform={m=((1.00,0.00)(0.00,1.00)) t=(200.00,10.00)}] [fill={[type=LINEAR-GRADIENT] [id="gradient2"]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+    LayoutSVGText {text} at (10,136) size 451.42x18 contains 1 chunk(s)
+      LayoutSVGInlineText {#text} at (10,136) size 451.42x18
         chunk 1 text run 1 at (10.00,150.00) startOffset 0 endOffset 69 width 451.42: "The above two squares should be blue-red gradients and look identical"