Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/linux/svg/custom/text-letter-spacing-expected.txt

Index: third_party/WebKit/LayoutTests/platform/linux/svg/custom/text-letter-spacing-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/linux/svg/custom/text-letter-spacing-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/svg/custom/text-letter-spacing-expected.txt
index ca9318c983061357ded0dafa3c664779f70c4c9e..d93bdb0584ab9098c4f0469456c9bf1a9689a4b0 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/svg/custom/text-letter-spacing-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/svg/custom/text-letter-spacing-expected.txt
@@ -1,10 +1,10 @@
 layer at (0,0) size 800x600
   LayoutView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  LayoutSVGRoot {svg} at (20,12) size 360x156
-    LayoutSVGContainer {g} at (20,12) size 360x156
-      LayoutSVGText {text} at (10,6) size 180x18 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 180x18
+  LayoutSVGRoot {svg} at (0,0) size 800x600
+    LayoutSVGContainer {g} at (10,6) size 179.88x78
+      LayoutSVGText {text} at (10,6) size 179.88x18 contains 1 chunk(s)
+        LayoutSVGInlineText {#text} at (10,6) size 179.88x18
           chunk 1 text run 1 at (10.00,20.00) startOffset 0 endOffset 1 width 11.00: "A"
           chunk 1 text run 2 at (39.90,20.00) startOffset 1 endOffset 2 width 10.50: "B"
           chunk 1 text run 3 at (69.30,20.00) startOffset 2 endOffset 3 width 10.50: "C"
@@ -12,21 +12,21 @@ layer at (0,0) size 800x600
           chunk 1 text run 5 at (121.59,20.00) startOffset 4 endOffset 5 width 11.50: "D"
           chunk 1 text run 6 at (151.99,20.00) startOffset 5 endOffset 6 width 10.00: "E"
           chunk 1 text run 7 at (180.89,20.00) startOffset 6 endOffset 7 width 9.00: "F"
-      LayoutSVGText {text} at (10,26) size 180x18 contains 1 chunk(s)
+      LayoutSVGText {text} at (10,26) size 179.88x18 contains 1 chunk(s)
         LayoutSVGTSpan {tspan} at (0,0) size 70x18
-          LayoutSVGInlineText {#text} at (0,0) size 70x18
+          LayoutSVGInlineText {#text} at (10,26) size 69.78x18
             chunk 1 text run 1 at (10.00,40.00) startOffset 0 endOffset 1 width 11.00: "A"
             chunk 1 text run 2 at (39.90,40.00) startOffset 1 endOffset 2 width 10.50: "B"
             chunk 1 text run 3 at (69.30,40.00) startOffset 2 endOffset 3 width 10.50: "C"
-        LayoutSVGInlineText {#text} at (88,0) size 4x18
+        LayoutSVGInlineText {#text} at (98.69,26) size 4x18
           chunk 1 text run 1 at (98.69,40.00) startOffset 0 endOffset 1 width 4.00: " "
         LayoutSVGTSpan {tspan} at (0,0) size 69x18
-          LayoutSVGInlineText {#text} at (111,0) size 69x18
+          LayoutSVGInlineText {#text} at (121.58,26) size 68.30x18
             chunk 1 text run 1 at (121.59,40.00) startOffset 0 endOffset 1 width 11.50: "D"
             chunk 1 text run 2 at (151.99,40.00) startOffset 1 endOffset 2 width 10.00: "E"
             chunk 1 text run 3 at (180.89,40.00) startOffset 2 endOffset 3 width 9.00: "F"
       LayoutSVGText {text} at (10,46) size 129x18 contains 1 chunk(s)
-        LayoutSVGInlineText {#text} at (0,0) size 129x18
+        LayoutSVGInlineText {#text} at (10,46) size 129x18
           chunk 1 text run 1 at (10.00,60.00) startOffset 0 endOffset 1 width 11.00: "A"
           chunk 1 text run 1 at (30.00,60.00) startOffset 0 endOffset 1 width 10.50: "B"
           chunk 1 text run 1 at (50.00,60.00) startOffset 0 endOffset 1 width 10.50: "C"
@@ -36,14 +36,14 @@ layer at (0,0) size 800x600
           chunk 1 text run 1 at (130.00,60.00) startOffset 0 endOffset 1 width 9.00: "F"
       LayoutSVGText {text} at (10,66) size 129x18 contains 1 chunk(s)
         LayoutSVGTSpan {tspan} at (0,0) size 51x18
-          LayoutSVGInlineText {#text} at (0,0) size 51x18
+          LayoutSVGInlineText {#text} at (10,66) size 50.50x18
             chunk 1 text run 1 at (10.00,80.00) startOffset 0 endOffset 1 width 11.00: "A"
             chunk 1 text run 1 at (30.00,80.00) startOffset 0 endOffset 1 width 10.50: "B"
             chunk 1 text run 1 at (50.00,80.00) startOffset 0 endOffset 1 width 10.50: "C"
-        LayoutSVGInlineText {#text} at (60,0) size 4x18
+        LayoutSVGInlineText {#text} at (70,66) size 4x18
           chunk 1 text run 1 at (70.00,80.00) startOffset 0 endOffset 1 width 4.00: " "
         LayoutSVGTSpan {tspan} at (0,0) size 49x18
-          LayoutSVGInlineText {#text} at (80,0) size 49x18
+          LayoutSVGInlineText {#text} at (90,66) size 49x18
             chunk 1 text run 1 at (90.00,80.00) startOffset 0 endOffset 1 width 11.50: "D"
             chunk 1 text run 1 at (110.00,80.00) startOffset 0 endOffset 1 width 10.00: "E"
             chunk 1 text run 1 at (130.00,80.00) startOffset 0 endOffset 1 width 9.00: "F"