Move RenderSVGRect to layout/svg

LayoutTests/svg/custom/mask-inside-defs-expected.txt

Index: LayoutTests/svg/custom/mask-inside-defs-expected.txt
diff --git a/LayoutTests/svg/custom/mask-inside-defs-expected.txt b/LayoutTests/svg/custom/mask-inside-defs-expected.txt
index c4ba67650c1696a83edf08b28c41663681d2e6ea..f6e19a5750fe7e262e5b153e36162dd433c66869 100644
--- a/LayoutTests/svg/custom/mask-inside-defs-expected.txt
+++ b/LayoutTests/svg/custom/mask-inside-defs-expected.txt
@@ -3,8 +3,8 @@ layer at (0,0) size 800x600
 layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (0,0) size 100x100
     LayoutSVGResourceMasker {mask} [id="mymask"] [maskUnits=objectBoundingBox] [maskContentUnits=userSpaceOnUse]
-      RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FFFFFF]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+      LayoutSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FFFFFF]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
     LayoutSVGContainer {g} at (0,0) size 100x100
       [masker="mymask"] LayoutSVGResourceMasker {mask} at (0,0) size 100x100
-      RenderSVGRect {rect} at (0,0) size 200x200 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=200.00] [height=200.00]
-      RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
+      LayoutSVGRect {rect} at (0,0) size 200x200 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=200.00] [height=200.00]
+      LayoutSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]