Move RenderSVGRect to layout/svg

LayoutTests/platform/mac/svg/custom/fill-fallback-expected.txt

Index: LayoutTests/platform/mac/svg/custom/fill-fallback-expected.txt
diff --git a/LayoutTests/platform/mac/svg/custom/fill-fallback-expected.txt b/LayoutTests/platform/mac/svg/custom/fill-fallback-expected.txt
index 222aab7d4c54c54d483cffeb92f73201910fe284..3c925de1306daff356c2222cb113be341ecbd90f 100644
--- a/LayoutTests/platform/mac/svg/custom/fill-fallback-expected.txt
+++ b/LayoutTests/platform/mac/svg/custom/fill-fallback-expected.txt
@@ -2,10 +2,10 @@ layer at (0,0) size 800x600
   RenderView at (0,0) size 800x600
 layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (0,0) size 497x194
-    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 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
     LayoutSVGResourceLinearGradient {linearGradient} [id="grad"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
       RenderSVGGradientStop {stop} [offset=0.00] [color=#008000]
-    RenderSVGRect {rect} at (150,0) size 100x100 [fill={[type=LINEAR-GRADIENT] [id="grad"]}] [x=150.00] [y=0.00] [width=100.00] [height=100.00]
+    LayoutSVGRect {rect} at (150,0) size 100x100 [fill={[type=LINEAR-GRADIENT] [id="grad"]}] [x=150.00] [y=0.00] [width=100.00] [height=100.00]
     LayoutSVGText {text} at (0,136) size 315x18 contains 1 chunk(s)
       LayoutSVGInlineText {#text} at (0,0) size 315x18
         chunk 1 text run 1 at (0.00,150.00) startOffset 0 endOffset 47 width 314.13: "Above two green rectangles should be displayed."