Move RenderSVGContainer to layout/svg/LayoutSVGContainer.

LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-19-b-expected.txt

Index: LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-19-b-expected.txt
diff --git a/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-19-b-expected.txt b/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-19-b-expected.txt
index 21cd4db46aa188fcfe04e0fa9d8e2a6530cfc3c6..a198637a8045f27e971ceba1c77327d193c9a170 100644
--- a/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-19-b-expected.txt
+++ b/LayoutTests/platform/mac/svg/W3C-SVG-1.1/pservers-grad-19-b-expected.txt
@@ -2,29 +2,29 @@ layer at (0,0) size 480x360
   RenderView at (0,0) size 480x360
 layer at (0,0) size 480x360
   RenderSVGRoot {svg} at (0,0) size 480x360
-    RenderSVGContainer {g} at (50,50) size 250x250
+    LayoutSVGContainer {g} at (50,50) size 250x250
       RenderSVGHiddenContainer {g} at (0,0) size 0x0
-        RenderSVGContainer {g} at (0,0) size 0x0
+        LayoutSVGContainer {g} at (0,0) size 0x0
           LayoutSVGResourceLinearGradient {linearGradient} [id="MyGradient1"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
             RenderSVGGradientStop {stop} [offset=0.00] [color=#008000]
             RenderSVGGradientStop {stop} [offset=1.00] [color=#000000]
           LayoutSVGResourceLinearGradient {linearGradient} [id="MyGradient2"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
             RenderSVGGradientStop {stop} [offset=0.00] [color=#008000]
             RenderSVGGradientStop {stop} [offset=1.00] [color=#008000]
-          RenderSVGContainer {g} at (0,0) size 0x0
+          LayoutSVGContainer {g} at (0,0) size 0x0
             LayoutSVGResourceLinearGradient {linearGradient} [id="MyGradient3"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
               RenderSVGGradientStop {stop} [offset=0.00] [color=#008000]
               RenderSVGGradientStop {stop} [offset=1.00] [color=#000000]
             LayoutSVGResourceLinearGradient {linearGradient} [id="MyGradient4"] [gradientUnits=objectBoundingBox] [start=(0,0)] [end=(1,0)]
               RenderSVGGradientStop {stop} [offset=0.00] [color=#008000]
               RenderSVGGradientStop {stop} [offset=1.00] [color=#FFFF00]
-      RenderSVGContainer {g} at (50,50) size 100x100
+      LayoutSVGContainer {g} at (50,50) size 100x100
         RenderSVGRect {rect} at (50,50) size 100x100 [fill={[type=LINEAR-GRADIENT] [id="MyGradient1"]}] [x=50.00] [y=50.00] [width=100.00] [height=100.00]
-      RenderSVGContainer {g} at (200,50) size 100x100
+      LayoutSVGContainer {g} at (200,50) size 100x100
         RenderSVGRect {rect} at (200,50) size 100x100 [fill={[type=LINEAR-GRADIENT] [id="MyGradient2"]}] [x=200.00] [y=50.00] [width=100.00] [height=100.00]
-      RenderSVGContainer {g} at (50,200) size 100x100
+      LayoutSVGContainer {g} at (50,200) size 100x100
         RenderSVGRect {rect} at (50,200) size 100x100 [fill={[type=LINEAR-GRADIENT] [id="MyGradient3"]}] [x=50.00] [y=200.00] [width=100.00] [height=100.00]
-      RenderSVGContainer {g} at (200,200) size 100x100
+      LayoutSVGContainer {g} at (200,200) size 100x100
         RenderSVGRect {rect} at (200,200) size 100x100 [fill={[type=LINEAR-GRADIENT] [id="MyGradient4"]}] [x=200.00] [y=200.00] [width=100.00] [height=100.00]
     LayoutSVGText {text} at (10,304) size 264x46 contains 1 chunk(s)
       LayoutSVGInlineText {#text} at (0,0) size 264x46