Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-referencing-nonexisting-symbol-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-referencing-nonexisting-symbol-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-referencing-nonexisting-symbol-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-referencing-nonexisting-symbol-expected.txt
index df3aee7abae99bc5d4a0e728c24dbe71fd4f1875..33ed56f567690e4f17b696073296e2325a6c1546 100644
--- a/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-referencing-nonexisting-symbol-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/mac/svg/custom/use-referencing-nonexisting-symbol-expected.txt
@@ -1,20 +1,20 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (146,19) size 554x581
-    LayoutSVGHiddenContainer {symbol} at (0,0) size 0x0
+  LayoutSVGRoot {svg} at (0,0) size 800x600
+    LayoutSVGHiddenContainer {symbol} at (5,2) size 59x69
       LayoutSVGRect {rect} at (5,5) size 59x59 [fill={[type=SOLID] [color=#0000FF]}] [x=5.00] [y=5.00] [width=59.00] [height=59.00]
-      LayoutSVGText {text} at (17,2) size 44x69 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 44x69
+      LayoutSVGText {text} at (17,2) size 43.33x69 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (17,2) size 43.33x69
           chunk 1 text run 1 at (17.00,56.00) startOffset 0 endOffset 1 width 43.33: "A"
-    LayoutSVGHiddenContainer {symbol} at (0,0) size 0x0
+    LayoutSVGHiddenContainer {symbol} at (5,2) size 59x69
       LayoutSVGRect {rect} at (5,5) size 59x59 [fill={[type=SOLID] [color=#FF00FF]}] [x=5.00] [y=5.00] [width=59.00] [height=59.00]
-      LayoutSVGText {text} at (17,2) size 41x69 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 41x69
+      LayoutSVGText {text} at (17,2) size 40.02x69 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (17,2) size 40.02x69
           chunk 1 text run 1 at (17.00,56.00) startOffset 0 endOffset 1 width 40.02: "B"
-    LayoutSVGContainer {use} at (146,19) size 554x581
-      LayoutSVGViewportContainer {svg} at (146,19) size 554x581
-        LayoutSVGRect {rect} at (146,46) size 554x554 [fill={[type=SOLID] [color=#0000FF]}] [x=5.00] [y=5.00] [width=59.00] [height=59.00]
-        LayoutSVGText {text} at (17,2) size 44x70 contains 1 chunk(s)
-          LayoutSVGInlineText {#text} at (0,0) size 44x69
+    LayoutSVGContainer {use} at (146.88,19.04) size 553.13x646.88
+      LayoutSVGViewportContainer {svg} at (5,2.03) size 59x69
+        LayoutSVGRect {rect} at (5,5) size 59x59 [fill={[type=SOLID] [color=#0000FF]}] [x=5.00] [y=5.00] [width=59.00] [height=59.00]
+        LayoutSVGText {text} at (17,2.03) size 43.33x69 contains 1 chunk(s)
+          LayoutSVGInlineText {#text} at (17,2.03) size 43.33x69
             chunk 1 text run 1 at (17.00,56.00) startOffset 0 endOffset 1 width 43.33: "A"