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

LayoutTests/svg/custom/visibility-override-mask-expected.txt

Index: LayoutTests/svg/custom/visibility-override-mask-expected.txt
diff --git a/LayoutTests/svg/custom/visibility-override-mask-expected.txt b/LayoutTests/svg/custom/visibility-override-mask-expected.txt
index 975bd8c116fc6b652d47d00312778ddfe2e8bb4f..f6f97dcfa12215e909754860d1ad4250d648ad0c 100644
--- a/LayoutTests/svg/custom/visibility-override-mask-expected.txt
+++ b/LayoutTests/svg/custom/visibility-override-mask-expected.txt
@@ -3,11 +3,11 @@ layer at (0,0) size 800x600
 layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (0,0) size 100x100
     RenderSVGHiddenContainer {defs} at (0,0) size 0x0
-      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]
     RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#0000FF]}] [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
       RenderSVGContainer {g} at (0,0) size 200x200
         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]