Move RenderSVGRect to layout/svg

LayoutTests/platform/win-xp/svg/hixie/mixed/008-expected.txt

Index: LayoutTests/platform/win-xp/svg/hixie/mixed/008-expected.txt
diff --git a/LayoutTests/platform/win-xp/svg/hixie/mixed/008-expected.txt b/LayoutTests/platform/win-xp/svg/hixie/mixed/008-expected.txt
index 4ab0e8084e3f2daeff89c15aa84e100d054a07ba..3e6cd7f69839d9bcd3ce53c5de81600985b10efe 100644
--- a/LayoutTests/platform/win-xp/svg/hixie/mixed/008-expected.txt
+++ b/LayoutTests/platform/win-xp/svg/hixie/mixed/008-expected.txt
@@ -8,7 +8,7 @@ layer at (0,0) size 800x465
           text run at (0,0) width 380: "There should be a blue circle with the word \"TEST\" in it below."
       RenderBlock (anonymous) at (0,36) size 784x405
         RenderSVGRoot {svg} at (8,52) size 400x400
-          RenderSVGRect {rect} at (8,52) size 400x400 [fill={[type=SOLID] [color=#0000FF]}] [x=0.00] [y=0.00] [width=400.00] [height=400.00]
+          LayoutSVGRect {rect} at (8,52) size 400x400 [fill={[type=SOLID] [color=#0000FF]}] [x=0.00] [y=0.00] [width=400.00] [height=400.00]
           RenderSVGEllipse {circle} at (8,52) size 400x400 [fill={[type=SOLID] [color=#000080]}] [cx=200.00] [cy=200.00] [r=200.00]
           RenderSVGForeignObject {foreignObject} at (0,175) size 400x50 [color=#FFFFFF]
             RenderBlock {div} at (0,0) size 400x59