Move RenderSVGRect to layout/svg

LayoutTests/svg/custom/pattern-excessive-malloc-expected.txt

Index: LayoutTests/svg/custom/pattern-excessive-malloc-expected.txt
diff --git a/LayoutTests/svg/custom/pattern-excessive-malloc-expected.txt b/LayoutTests/svg/custom/pattern-excessive-malloc-expected.txt
index 7ef8b71c541c2b2148c0c6b9389192e8eb4a3ac5..f3b46e403c4fdd01a30bd6d54baa8cba8e10bebb 100644
--- a/LayoutTests/svg/custom/pattern-excessive-malloc-expected.txt
+++ b/LayoutTests/svg/custom/pattern-excessive-malloc-expected.txt
@@ -4,5 +4,5 @@ layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (10,300) size 100x100
     RenderSVGHiddenContainer {defs} at (0,0) size 0x0
       LayoutSVGResourcePattern {pattern} [id="pattern"] [patternUnits=userSpaceOnUse] [patternContentUnits=userSpaceOnUse]
-        RenderSVGRect {rect} at (0,0) size 800x600 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=1000000000.00] [height=1000000000.00]
-    RenderSVGRect {rect} at (10,300) size 100x100 [fill={[type=PATTERN] [id="pattern"]}] [x=10.00] [y=300.00] [width=100.00] [height=100.00]
+        LayoutSVGRect {rect} at (0,0) size 800x600 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=1000000000.00] [height=1000000000.00]
+    LayoutSVGRect {rect} at (10,300) size 100x100 [fill={[type=PATTERN] [id="pattern"]}] [x=10.00] [y=300.00] [width=100.00] [height=100.00]