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

LayoutTests/platform/mac/svg/hixie/error/012-expected.txt

Index: LayoutTests/platform/mac/svg/hixie/error/012-expected.txt
diff --git a/LayoutTests/platform/mac/svg/hixie/error/012-expected.txt b/LayoutTests/platform/mac/svg/hixie/error/012-expected.txt
index da97dca142ae2ef88564753760352c1d45721962..9759ebdc7cb64ce955b87dca3f51271591622cdd 100644
--- a/LayoutTests/platform/mac/svg/hixie/error/012-expected.txt
+++ b/LayoutTests/platform/mac/svg/hixie/error/012-expected.txt
@@ -15,6 +15,6 @@ layer at (0,0) size 785x600
           RenderText {#text} at (0,0) size 421x22
             text run at (0,0) width 421: "Below is a rendering of the page up to the first error."
       RenderBlock (anonymous) at (0,152.88) size 769x604
-        RenderSVGRoot {svg} at (18,178) size 200x201
+        LayoutSVGRoot {svg} at (18,178) size 200x201
           LayoutSVGRect {rect} at (18,178) size 200x201 [fill={[type=SOLID] [color=#FF0000]}] [x=10.00] [y=10.00] [width=200.00] [height=200.00]
           LayoutSVGRect {rect} at (18,178) size 200x201 [fill={[type=SOLID] [color=#FF0000]}] [x=10.00] [y=10.00] [width=200.00] [height=200.00]