Move RenderSVGRect to layout/svg

LayoutTests/platform/linux/svg/text/text-align-06-b-expected.txt

Index: LayoutTests/platform/linux/svg/text/text-align-06-b-expected.txt
diff --git a/LayoutTests/platform/linux/svg/text/text-align-06-b-expected.txt b/LayoutTests/platform/linux/svg/text/text-align-06-b-expected.txt
index dd55081da0d45e5dc6f655f73557245220d3116d..932244084410efb300fc6f9befa607045d1385ee 100644
--- a/LayoutTests/platform/linux/svg/text/text-align-06-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/text/text-align-06-b-expected.txt
@@ -64,6 +64,6 @@ layer at (0,0) size 800x600
     LayoutSVGText {text} at (10,304) size 266x46 contains 1 chunk(s)
       LayoutSVGInlineText {#text} at (0,0) size 266x46
         chunk 1 text run 1 at (10.00,340.00) startOffset 0 endOffset 16 width 265.80: "$Revision: 1.5 $"
-    RenderSVGRect {rect} at (0,0) size 800x600 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]
+    LayoutSVGRect {rect} at (0,0) size 800x600 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=478.00] [height=358.00]
 selection start: position 0 of child 0 {#text} of child 1 {text} of child 13 {g} of child 27 {svg} of document
 selection end:   position 16 of child 0 {#text} of child 15 {text} of child 27 {svg} of document