Move RenderSVGRect to layout/svg

LayoutTests/svg/filters/filter-hidden-content-expected.txt

Index: LayoutTests/svg/filters/filter-hidden-content-expected.txt
diff --git a/LayoutTests/svg/filters/filter-hidden-content-expected.txt b/LayoutTests/svg/filters/filter-hidden-content-expected.txt
index 642ce8bf5fe3ed69ce4cc0cbc0c4d708d2ed4a22..750afc22ae3982508609a24b74101da4c2824a19 100644
--- a/LayoutTests/svg/filters/filter-hidden-content-expected.txt
+++ b/LayoutTests/svg/filters/filter-hidden-content-expected.txt
@@ -8,9 +8,9 @@ layer at (0,0) size 400x400
           [SourceGraphic]
     LayoutSVGContainer {g} at (0,0) size 275x55
       [filter="f1"] LayoutSVGResourceFilter {filter} at (-25,-5) size 300x60
-      RenderSVGRect {rect} at (0,0) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=50.00] [height=50.00]
-      RenderSVGRect {rect} at (200,0) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=200.00] [y=0.00] [width=50.00] [height=50.00]
+      LayoutSVGRect {rect} at (0,0) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=50.00] [height=50.00]
+      LayoutSVGRect {rect} at (200,0) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=200.00] [y=0.00] [width=50.00] [height=50.00]
     LayoutSVGContainer {g} at (125,145) size 275x60 [transform={m=((1.00,0.00)(0.00,1.00)) t=(150.00,150.00)}]
       [filter="f1"] LayoutSVGResourceFilter {filter} at (-25,-5) size 300x60
-      RenderSVGRect {rect} at (150,150) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=50.00] [height=50.00]
-      RenderSVGRect {rect} at (350,150) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=200.00] [y=0.00] [width=50.00] [height=50.00]
+      LayoutSVGRect {rect} at (150,150) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=50.00] [height=50.00]
+      LayoutSVGRect {rect} at (350,150) size 50x50 [fill={[type=SOLID] [color=#008000]}] [x=200.00] [y=0.00] [width=50.00] [height=50.00]