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

LayoutTests/svg/filters/feDropShadow-subregion-expected.txt

Index: LayoutTests/svg/filters/feDropShadow-subregion-expected.txt
diff --git a/LayoutTests/svg/filters/feDropShadow-subregion-expected.txt b/LayoutTests/svg/filters/feDropShadow-subregion-expected.txt
index 73017f49d03330da2c5d8770caffd81eed8dff37..116389b63cf9abddc6ae2f806aab52ad15b4a1df 100644
--- a/LayoutTests/svg/filters/feDropShadow-subregion-expected.txt
+++ b/LayoutTests/svg/filters/feDropShadow-subregion-expected.txt
@@ -3,11 +3,11 @@ layer at (0,0) size 800x600
 layer at (0,0) size 100x100
   RenderSVGRoot {svg} at (0,0) size 70x70
     RenderSVGHiddenContainer {defs} at (0,0) size 0x0
-      RenderSVGResourceFilter {filter} [id="DropShadow"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
+      LayoutSVGResourceFilter {filter} [id="DropShadow"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
         [feComposite operation="OVER"]
           [feDropShadow stdDeviation="10.00, 10.00" dx="10.00" dy="10.00" flood-color="#FF0000" flood-opacity="1.00]
             [SourceGraphic]
           [feOffset dx="10.00" dy="10.00"]
             [SourceGraphic]
     RenderSVGRect {rect} at (0,0) size 70x70 [fill={[type=SOLID] [color=#008000]}] [x=10.00] [y=10.00] [width=40.00] [height=40.00]
-      [filter="DropShadow"] RenderSVGResourceFilter {filter} at (-10,-10) size 80x80
+      [filter="DropShadow"] LayoutSVGResourceFilter {filter} at (-10,-10) size 80x80