Move RenderSVGContainer to layout/svg/LayoutSVGContainer.

LayoutTests/svg/W3C-SVG-1.1/animate-elem-07-t-expected.txt

Index: LayoutTests/svg/W3C-SVG-1.1/animate-elem-07-t-expected.txt
diff --git a/LayoutTests/svg/W3C-SVG-1.1/animate-elem-07-t-expected.txt b/LayoutTests/svg/W3C-SVG-1.1/animate-elem-07-t-expected.txt
index 85c635ea6627d23f6b8b06562a60a3d25233482e..c1e172d313721b54aa245313424dcec070e89f66 100644
--- a/LayoutTests/svg/W3C-SVG-1.1/animate-elem-07-t-expected.txt
+++ b/LayoutTests/svg/W3C-SVG-1.1/animate-elem-07-t-expected.txt
@@ -2,14 +2,14 @@ layer at (0,0) size 480x360
   RenderView at (0,0) size 480x360
 layer at (0,0) size 480x360
   RenderSVGRoot {svg} at (3,3) size 474x354
-    RenderSVGContainer {g} at (42,4) size 427x307
+    LayoutSVGContainer {g} at (42,4) size 427x307
       LayoutSVGText {text} at (7,0) size 67x10 contains 1 chunk(s)
         LayoutSVGInlineText {#text} at (0,0) size 67x9
           chunk 1 text run 1 at (7.00,8.00) startOffset 0 endOffset 18 width 66.26: "Test a motion path"
       LayoutSVGText {text} at (10,10) size 59x10 contains 1 chunk(s)
         LayoutSVGInlineText {#text} at (0,0) size 59x9
           chunk 1 text run 1 at (10.00,18.00) startOffset 0 endOffset 16 width 58.20: "'mpath' element."
-      RenderSVGContainer {g} at (42,120) size 427x191
+      LayoutSVGContainer {g} at (42,120) size 427x191
         RenderSVGPath {path} at (87,120) size 305x141 [stroke={[type=SOLID] [color=#000000]}] [data="M 15 43 C 15 43 36 20 65 33"]
         RenderSVGRect {rect} at (57,195) size 66x66 [stroke={[type=SOLID] [color=#000000]}] [fill={[type=SOLID] [color=#FFCCCC]}] [x=10.00] [y=33.00] [width=10.00] [height=10.00]
         LayoutSVGText {text} at (7,42) size 22x10 contains 1 chunk(s)