Move RenderSVGRect to layout/svg

LayoutTests/platform/linux/svg/custom/invalid-css-expected.txt

Index: LayoutTests/platform/linux/svg/custom/invalid-css-expected.txt
diff --git a/LayoutTests/platform/linux/svg/custom/invalid-css-expected.txt b/LayoutTests/platform/linux/svg/custom/invalid-css-expected.txt
index a8348834f8c152d5da15bc8ec6e9e8311254d48c..94b3f58d67838fc864ca5d81504d5a3866aa6206 100644
--- a/LayoutTests/platform/linux/svg/custom/invalid-css-expected.txt
+++ b/LayoutTests/platform/linux/svg/custom/invalid-css-expected.txt
@@ -11,7 +11,7 @@ layer at (0,0) size 800x600
       [feGaussianBlur stdDeviation="5.00, 1.00"]
         [SourceGraphic]
     LayoutSVGResourceMarker {marker} [id="marker1"] [markerUnits=strokeWidth] [ref at (5,5)] [angle=0.00]
-      RenderSVGRect {rect} at (0,0) size 4x4 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=10.00] [height=10.00]
+      LayoutSVGRect {rect} at (0,0) size 4x4 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=10.00] [height=10.00]
     LayoutSVGText {text} at (0,-2) size 306x20 contains 1 chunk(s)
       LayoutSVGInlineText {#text} at (0,0) size 306x19
         chunk 1 text run 1 at (0.00,13.00) startOffset 0 endOffset 46 width 306.00: "The rect should be opaque green, black stroke,"