Move RenderSVGContainer to layout/svg/LayoutSVGContainer.

LayoutTests/platform/linux/svg/text/text-align-02-b-expected.txt

Index: LayoutTests/platform/linux/svg/text/text-align-02-b-expected.txt
diff --git a/LayoutTests/platform/linux/svg/text/text-align-02-b-expected.txt b/LayoutTests/platform/linux/svg/text/text-align-02-b-expected.txt
index 8e0f8d93ea99b71a0a3644130a75f8eaa7113358..3813eba94e9f996e7e4aea9996b7d9f3deb911ef 100644
--- a/LayoutTests/platform/linux/svg/text/text-align-02-b-expected.txt
+++ b/LayoutTests/platform/linux/svg/text/text-align-02-b-expected.txt
@@ -2,11 +2,11 @@ layer at (0,0) size 800x600
   RenderView at (0,0) size 800x600
 layer at (0,0) size 800x600
   RenderSVGRoot {svg} at (0,0) size 800x600
-    RenderSVGContainer {g} at (8,14) size 792x460
+    LayoutSVGContainer {g} at (8,14) size 792x460
       LayoutSVGText {text} at (5,8) size 476x40 contains 1 chunk(s)
         LayoutSVGInlineText {#text} at (0,0) size 476x39
           chunk 1 text run 1 at (5.00,40.00) startOffset 0 endOffset 34 width 475.80: "Test 'baseline-shift' (horizontal)"
-      RenderSVGContainer {g} at (25,142) size 672x332 [transform={m=((1.00,0.00)(0.00,1.00)) t=(15.00,120.00)}]
+      LayoutSVGContainer {g} at (25,142) size 672x332 [transform={m=((1.00,0.00)(0.00,1.00)) t=(15.00,120.00)}]
         LayoutSVGText {text} at (0,-35) size 350x42 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,6) size 97x35
             chunk 1 text run 1 at (0.00,0.00) startOffset 0 endOffset 6 width 96.60: "Normal"