Move RenderSVGRect to layout/svg

LayoutTests/svg/custom/visibility-override-filter-expected.txt

Index: LayoutTests/svg/custom/visibility-override-filter-expected.txt
diff --git a/LayoutTests/svg/custom/visibility-override-filter-expected.txt b/LayoutTests/svg/custom/visibility-override-filter-expected.txt
index 1f8def8a5a533172bc5e17b58bb709792a5267cf..37f96d38b8c58ce93dbc2be608e3bd55e3e8d6a1 100644
--- a/LayoutTests/svg/custom/visibility-override-filter-expected.txt
+++ b/LayoutTests/svg/custom/visibility-override-filter-expected.txt
@@ -5,7 +5,7 @@ layer at (0,0) size 800x600
     RenderSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourceFilter {filter} [id="myfilter"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
         [feFlood flood-color="#008000" flood-opacity="1.00"]
-    RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+    LayoutSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
     LayoutSVGContainer {g} at (0,0) size 100x100
       [filter="myfilter"] LayoutSVGResourceFilter {filter} at (0,0) size 100x100
-      RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+      LayoutSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]