Move rendering/svg/RenderSVGResource* to layout/svg.

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

Index: LayoutTests/platform/win/svg/custom/fill-fallback-expected.txt
diff --git a/LayoutTests/platform/win/svg/custom/fill-fallback-expected.txt b/LayoutTests/platform/win/svg/custom/fill-fallback-expected.txt
index 25302ca1883b0b51dd68f52838517fe4d77953da..262ce3903356d074f008f7a6e55e74869fe3c87f 100644
--- a/LayoutTests/platform/win/svg/custom/fill-fallback-expected.txt
+++ b/LayoutTests/platform/win/svg/custom/fill-fallback-expected.txt
@@ -3,7 +3,7 @@ layer at (0,0) size 800x600
 layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (0,0) size 497x193
     RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
-    RenderSVGResourceLinearGradient {linearGradient} [id="grad"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
+    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]
     RenderSVGText {text} at (0,136) size 315x17 contains 1 chunk(s)