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

LayoutTests/svg/custom/mask-inside-defs-expected.txt

Index: LayoutTests/svg/custom/mask-inside-defs-expected.txt
diff --git a/LayoutTests/svg/custom/mask-inside-defs-expected.txt b/LayoutTests/svg/custom/mask-inside-defs-expected.txt
index 900ba9331a442d3648e7c91b11c96f3830ca2dd8..6f48303c84fc0833f14ce24d3a9fb6c9c6b2e85c 100644
--- a/LayoutTests/svg/custom/mask-inside-defs-expected.txt
+++ b/LayoutTests/svg/custom/mask-inside-defs-expected.txt
@@ -2,9 +2,9 @@ layer at (0,0) size 800x600
   RenderView at (0,0) size 800x600
 layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (0,0) size 100x100
-    RenderSVGResourceMasker {mask} [id="mymask"] [maskUnits=objectBoundingBox] [maskContentUnits=userSpaceOnUse]
+    LayoutSVGResourceMasker {mask} [id="mymask"] [maskUnits=objectBoundingBox] [maskContentUnits=userSpaceOnUse]
       RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#FFFFFF]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]
     RenderSVGContainer {g} at (0,0) size 100x100
-      [masker="mymask"] RenderSVGResourceMasker {mask} at (0,0) size 100x100
+      [masker="mymask"] LayoutSVGResourceMasker {mask} at (0,0) size 100x100
       RenderSVGRect {rect} at (0,0) size 200x200 [fill={[type=SOLID] [color=#FF0000]}] [x=0.00] [y=0.00] [width=200.00] [height=200.00]
       RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]