Move RenderSVGContainer to layout/svg/LayoutSVGContainer.

LayoutTests/svg/W3C-SVG-1.1/filters-blend-01-b-expected.txt

 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 (15,15) size 435x294
+    LayoutSVGContainer {g} at (15,15) size 435x294
       RenderSVGImage {image} at (120,15) size 300x294
       RenderSVGHiddenContainer {defs} at (0,0) size 0x0
         LayoutSVGResourceFilter {filter} [id="BlendNormal"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
           [feBlend mode="normal"]
             [SourceGraphic]
             [feFlood flood-color="#00FF00" flood-opacity="0.50"]
         LayoutSVGResourceFilter {filter} [id="BlendMultiply"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
           [feBlend mode="multiply"]
             [SourceGraphic]
             [feFlood flood-color="#00FF00" flood-opacity="0.50"]
         LayoutSVGResourceFilter {filter} [id="BlendScreen"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
           [feBlend mode="screen"]
             [SourceGraphic]
             [feFlood flood-color="#00FF00" flood-opacity="0.50"]
         LayoutSVGResourceFilter {filter} [id="BlendDarken"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
           [feBlend mode="darken"]
             [SourceGraphic]
             [feFlood flood-color="#00FF00" flood-opacity="0.50"]
         LayoutSVGResourceFilter {filter} [id="BlendLighten"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
           [feBlend mode="lighten"]
             [SourceGraphic]
             [feFlood flood-color="#00FF00" flood-opacity="0.50"]
       RenderSVGRect {rect} at (90,30) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#0000FF]}] [x=30.00] [y=10.00] [width=120.00] [height=10.00]
         [filter="BlendNormal"] LayoutSVGResourceFilter {filter} at (30,10) size 120x10
       RenderSVGRect {rect} at (90,69) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#0000FF]}] [x=30.00] [y=23.00] [width=120.00] [height=10.00]
         [filter="BlendMultiply"] LayoutSVGResourceFilter {filter} at (30,23) size 120x10
-      RenderSVGContainer {g} at (90,108) size 360x69
+      LayoutSVGContainer {g} at (90,108) size 360x69
         [filter="BlendMultiply"] LayoutSVGResourceFilter {filter} at (30,36) size 120x23
         RenderSVGRect {rect} at (90,108) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#0000FF]}] [x=30.00] [y=36.00] [width=120.00] [height=10.00]
         RenderSVGRect {rect} at (90,147) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#FFFF00]}] [x=30.00] [y=49.00] [width=120.00] [height=10.00]
       RenderSVGRect {rect} at (90,186) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#0000FF]}] [x=30.00] [y=62.00] [width=120.00] [height=10.00]
         [filter="BlendScreen"] LayoutSVGResourceFilter {filter} at (30,62) size 120x10
       RenderSVGRect {rect} at (90,225) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#0000FF]}] [x=30.00] [y=75.00] [width=120.00] [height=10.00]
         [filter="BlendDarken"] LayoutSVGResourceFilter {filter} at (30,75) size 120x10
       RenderSVGRect {rect} at (90,264) size 360x30 [opacity=0.50] [fill={[type=SOLID] [color=#0000FF]}] [x=30.00] [y=88.00] [width=120.00] [height=10.00]
         [filter="BlendLighten"] LayoutSVGResourceFilter {filter} at (30,88) size 120x10
-      RenderSVGContainer {g} at (15,31) size 74x260
+      LayoutSVGContainer {g} at (15,31) size 74x260
         LayoutSVGText {text} at (5,10) size 22x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 22x8
             chunk 1 text run 1 at (5.00,17.00) startOffset 0 endOffset 6 width 21.38: "Normal"
         LayoutSVGText {text} at (5,23) size 25x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 25x8
             chunk 1 text run 1 at (5.00,30.00) startOffset 0 endOffset 8 width 24.50: "Multiply"
         LayoutSVGText {text} at (5,36) size 25x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 25x8
             chunk 1 text run 1 at (5.00,43.00) startOffset 0 endOffset 8 width 24.50: "Multiply"
         LayoutSVGText {text} at (5,49) size 25x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 25x8
             chunk 1 text run 1 at (5.00,56.00) startOffset 0 endOffset 8 width 24.50: "Multiply"
         LayoutSVGText {text} at (5,62) size 20x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 20x8
             chunk 1 text run 1 at (5.00,69.00) startOffset 0 endOffset 6 width 19.04: "Screen"
         LayoutSVGText {text} at (5,75) size 21x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 21x8
             chunk 1 text run 1 at (5.00,82.00) startOffset 0 endOffset 6 width 20.60: "Darken"
         LayoutSVGText {text} at (5,88) size 22x9 contains 1 chunk(s)
           LayoutSVGInlineText {#text} at (0,0) size 22x8
             chunk 1 text run 1 at (5.00,95.00) startOffset 0 endOffset 7 width 21.77: "Lighten"
     LayoutSVGText {text} at (3,101) size 80x14 contains 1 chunk(s)
       LayoutSVGInlineText {#text} at (0,0) size 80x14
         chunk 1 text run 1 at (3.00,112.00) startOffset 0 endOffset 16 width 79.00: "$Revision: 1.8 $"
     RenderSVGRect {rect} at (0,0) size 480x360 [stroke={[type=SOLID] [color=#000000] [stroke width=0.50]}] [x=1.00] [y=1.00] [width=158.00] [height=118.00]