Change SVG layout tree output to be more meaningful and consistent

third_party/WebKit/LayoutTests/platform/linux/svg/W3C-SVG-1.1/filters-color-01-b-expected.txt

Index: third_party/WebKit/LayoutTests/platform/linux/svg/W3C-SVG-1.1/filters-color-01-b-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/linux/svg/W3C-SVG-1.1/filters-color-01-b-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/svg/W3C-SVG-1.1/filters-color-01-b-expected.txt
index f85ec437845d8f56461d701e126e69340c352aee..1d01eedda6f0e1a256f7ede5e4f77084e969b577 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/svg/W3C-SVG-1.1/filters-color-01-b-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/svg/W3C-SVG-1.1/filters-color-01-b-expected.txt
@@ -2,8 +2,8 @@ layer at (0,0) size 480x360
   LayoutView at (0,0) size 480x360
 layer at (0,0) size 480x360
   LayoutSVGRoot {svg} at (0,0) size 480x360
-    LayoutSVGContainer {g} at (0,5) size 480x293
-      LayoutSVGViewportContainer {svg} at (0,5) size 480x293
+    LayoutSVGContainer {g} at (8.58,5.58) size 462.84x291.52
+      LayoutSVGViewportContainer {svg} at (1,1) size 798x502.63
         LayoutSVGHiddenContainer {defs} at (0,0) size 0x0
           LayoutSVGResourceLinearGradient {linearGradient} [id="MyGradient"] [gradientUnits=userSpaceOnUse] [start=(20,0)] [end=(760,0)]
             LayoutSVGGradientStop {stop} [offset=0.00] [color=#DD00DD]
@@ -24,33 +24,33 @@ layer at (0,0) size 480x360
               [SourceGraphic]
               [feColorMatrix type="LUMINANCETOALPHA"]
                 [SourceGraphic]
-        LayoutSVGContainer {g} at (0,5) size 480x293
-          LayoutSVGRect {rect} at (8,5) size 464x290 [stroke={[type=SOLID] [color=#0000FF]}] [x=1.00] [y=1.00] [width=798.00] [height=498.00]
-          LayoutSVGRect {rect} at (19,16) size 442x24 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=20.00] [width=760.00] [height=40.00]
-          LayoutSVGText {text} at (20,55) size 195x49 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 195x49
+        LayoutSVGContainer {g} at (1,1) size 798x502.63
+          LayoutSVGRect {rect} at (1,1) size 798x498 [stroke={[type=SOLID] [color=#0000FF]}] [x=1.00] [y=1.00] [width=798.00] [height=498.00]
+          LayoutSVGRect {rect} at (20,20) size 760x40 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=20.00] [width=760.00] [height=40.00]
+          LayoutSVGText {text} at (20,55.36) size 194.81x48.27 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (20,55.36) size 194.81x48.27
               chunk 1 text run 1 at (20.00,95.00) startOffset 0 endOffset 10 width 194.83: "Unfiltered"
-          LayoutSVGRect {rect} at (19,74) size 442x24 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=120.00] [width=760.00] [height=40.00]
+          LayoutSVGRect {rect} at (20,120) size 760x40 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=120.00] [width=760.00] [height=40.00]
             [filter="Matrix"] LayoutSVGResourceFilter {filter} at (20,120) size 760x40
-          LayoutSVGText {text} at (20,155) size 668x49 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 668x49
+          LayoutSVGText {text} at (20,155.36) size 667.75x48.27 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (20,155.36) size 667.75x48.27
               chunk 1 text run 1 at (20.00,195.00) startOffset 0 endOffset 32 width 667.75: "type=\"matrix\" (grayscale matrix)"
-          LayoutSVGRect {rect} at (0,131) size 480x26 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=220.00] [width=760.00] [height=40.00]
+          LayoutSVGRect {rect} at (20,220) size 760x40 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=220.00] [width=760.00] [height=40.00]
             [filter="Saturate40"] LayoutSVGResourceFilter {filter} at (-18,218) size 836x44
-          LayoutSVGText {text} at (20,255) size 578x49 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 578x49
+          LayoutSVGText {text} at (20,255.36) size 577.63x48.27 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (20,255.36) size 577.63x48.27
               chunk 1 text run 1 at (20.00,295.00) startOffset 0 endOffset 27 width 577.63: "type=\"saturate\" values=\".4\""
-          LayoutSVGRect {rect} at (0,189) size 480x26 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=320.00] [width=760.00] [height=40.00]
+          LayoutSVGRect {rect} at (20,320) size 760x40 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=320.00] [width=760.00] [height=40.00]
             [filter="HueRotate90"] LayoutSVGResourceFilter {filter} at (-18,318) size 836x44
-          LayoutSVGText {text} at (20,355) size 630x49 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 630x49
+          LayoutSVGText {text} at (20,355.36) size 629.08x48.27 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (20,355.36) size 629.08x48.27
               chunk 1 text run 1 at (20.00,395.00) startOffset 0 endOffset 28 width 629.08: "type=\"hueRotate\" values=\"90\""
-          LayoutSVGRect {rect} at (0,247) size 480x26 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=420.00] [width=760.00] [height=40.00]
+          LayoutSVGRect {rect} at (20,420) size 760x40 [fill={[type=LINEAR-GRADIENT] [id="MyGradient"]}] [x=20.00] [y=420.00] [width=760.00] [height=40.00]
             [filter="LuminanceToAlpha"] LayoutSVGResourceFilter {filter} at (-18,418) size 836x44
-          LayoutSVGText {text} at (20,455) size 517x49 contains 1 chunk(s)
-            LayoutSVGInlineText {#text} at (0,0) size 517x49
+          LayoutSVGText {text} at (20,455.36) size 516.91x48.27 contains 1 chunk(s)
+            LayoutSVGInlineText {#text} at (20,455.36) size 516.91x48.27
               chunk 1 text run 1 at (20.00,495.00) startOffset 0 endOffset 23 width 516.91: "type=\"luminanceToAlpha\""
     LayoutSVGText {text} at (10,304) size 261x46 contains 1 chunk(s)
-      LayoutSVGInlineText {#text} at (0,0) size 261x46
+      LayoutSVGInlineText {#text} at (10,304) size 261x46
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 261.00: "$Revision: 1.6 $"
-    LayoutSVGRect {rect} at (0,0) size 480x360 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]
+    LayoutSVGRect {rect} at (1,1) size 478x358 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]