Move RenderSVGRect to layout/svg

LayoutTests/platform/mac/svg/text/text-text-01-b-expected.txt

Index: LayoutTests/platform/mac/svg/text/text-text-01-b-expected.txt
diff --git a/LayoutTests/platform/mac/svg/text/text-text-01-b-expected.txt b/LayoutTests/platform/mac/svg/text/text-text-01-b-expected.txt
index c5824e63127f83ed1cb8150ce5023bd19d62e226..3ca9ea6105fc301c7dd02d5920379a748b47d93e 100644
--- a/LayoutTests/platform/mac/svg/text/text-text-01-b-expected.txt
+++ b/LayoutTests/platform/mac/svg/text/text-text-01-b-expected.txt
@@ -200,6 +200,6 @@ layer at (0,0) size 800x600
     LayoutSVGText {text} at (5,109) size 53x10 contains 1 chunk(s)
       LayoutSVGInlineText {#text} at (0,0) size 53x10
         chunk 1 text run 1 at (5.00,117.00) startOffset 0 endOffset 16 width 52.67: "$Revision: 1.7 $"
-    RenderSVGRect {rect} at (2,2) size 796x596 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=158.00] [height=118.00]
+    LayoutSVGRect {rect} at (2,2) size 796x596 [stroke={[type=SOLID] [color=#000000]}] [x=1.00] [y=1.00] [width=158.00] [height=118.00]
 selection start: position 0 of child 0 {#text} of child 1 {text} of child 13 {g} of child 26 {svg} of document
 selection end:   position 16 of child 0 {#text} of child 15 {text} of child 26 {svg} of document