Move the remaining rendering/svg/RenderSVG* files to layout.

LayoutTests/platform/win/svg/css/text-shadow-multiple-expected.txt

Index: LayoutTests/platform/win/svg/css/text-shadow-multiple-expected.txt
diff --git a/LayoutTests/platform/win/svg/css/text-shadow-multiple-expected.txt b/LayoutTests/platform/win/svg/css/text-shadow-multiple-expected.txt
index 6e3a703f07b5eb23ced7d55e96343ae4ae1c9dbb..20af8f24774f3a11dc3f6a88e0443b79198f082d 100644
--- a/LayoutTests/platform/win/svg/css/text-shadow-multiple-expected.txt
+++ b/LayoutTests/platform/win/svg/css/text-shadow-multiple-expected.txt
@@ -7,7 +7,7 @@ layer at (0,0) size 800x408
         RenderText {#text} at (0,0) size 456x17
           text run at (0,0) width 456: "The first two texts should look identical, as there is no shadow applied."
       RenderBlock (anonymous) at (0,34) size 800x154
-        RenderSVGRoot {svg} at (20,121) size 717x56
+        LayoutSVGRoot {svg} at (20,121) size 717x56
           LayoutSVGText {text} at (20,21) size 717x56 contains 1 chunk(s)
             LayoutSVGTSpan {tspan} at (0,0) size 95x56
               LayoutSVGInlineText {#text} at (0,0) size 95x56
@@ -30,7 +30,7 @@ layer at (0,0) size 800x408
         RenderText {#text} at (0,0) size 568x17
           text run at (0,0) width 568: "The next two texts have subtle differences, as the stroke/fill is painted seperated in SVG."
       RenderBlock (anonymous) at (0,238) size 800x154
-        RenderSVGRoot {svg} at (0,308) size 744x89
+        LayoutSVGRoot {svg} at (0,308) size 744x89
           LayoutSVGText {text} at (20,21) size 717x56 contains 1 chunk(s)
             LayoutSVGTSpan {tspan} at (0,0) size 95x56
               LayoutSVGInlineText {#text} at (0,0) size 95x56