Add StyleChangeState to get rid of a bunch of static state in the render tree.

Source/WebCore/rendering/svg/RenderSVGRoot.cpp

Index: Source/WebCore/rendering/svg/RenderSVGRoot.cpp
diff --git a/Source/WebCore/rendering/svg/RenderSVGRoot.cpp b/Source/WebCore/rendering/svg/RenderSVGRoot.cpp
index 99a0c417fa8cd9191c6b9ccd820a87e75c049223..c62845e75f18b159eca15bcc8d60fdf54023b4aa 100644
--- a/Source/WebCore/rendering/svg/RenderSVGRoot.cpp
+++ b/Source/WebCore/rendering/svg/RenderSVGRoot.cpp
@@ -334,16 +334,16 @@ void RenderSVGRoot::willBeDestroyed()
     RenderReplaced::willBeDestroyed();
 }
 
-void RenderSVGRoot::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
+void RenderSVGRoot::styleWillChange(StyleDifference diff, const RenderStyle* newStyle, StyleChangeState& state)
 {
     if (diff == StyleDifferenceLayout)
         setNeedsBoundariesUpdate();
-    RenderReplaced::styleWillChange(diff, newStyle);
+    RenderReplaced::styleWillChange(diff, newStyle, state);
 }
 
-void RenderSVGRoot::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
+void RenderSVGRoot::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle, const StyleChangeState& state)
 {
-    RenderReplaced::styleDidChange(diff, oldStyle);
+    RenderReplaced::styleDidChange(diff, oldStyle, state);
     SVGResourcesCache::clientStyleChanged(this, diff, style());
 }