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

Source/WebCore/rendering/svg/RenderSVGBlock.cpp

Index: Source/WebCore/rendering/svg/RenderSVGBlock.cpp
diff --git a/Source/WebCore/rendering/svg/RenderSVGBlock.cpp b/Source/WebCore/rendering/svg/RenderSVGBlock.cpp
index f120b994663be6379083dfd0dcd0451f5f44425b..403e796194148352ede5c842e2c49be051aceabb 100644
--- a/Source/WebCore/rendering/svg/RenderSVGBlock.cpp
+++ b/Source/WebCore/rendering/svg/RenderSVGBlock.cpp
@@ -61,9 +61,9 @@ void RenderSVGBlock::setStyle(PassRefPtr<RenderStyle> style)
     RenderBlock::setStyle(useStyle.release());
 }
 
-void RenderSVGBlock::updateFromStyle()
+void RenderSVGBlock::updateFromStyle(const StyleChangeState& state)
 {
-    RenderBlock::updateFromStyle();
+    RenderBlock::updateFromStyle(state);
 
     // RenderSVGlock, used by Render(SVGText|ForeignObject), is not allowed to call setHasOverflowClip(true).
     // RenderBlock assumes a layer to be present when the overflow clip functionality is requested. Both
@@ -92,16 +92,16 @@ void RenderSVGBlock::willBeDestroyed()
     RenderBlock::willBeDestroyed();
 }
 
-void RenderSVGBlock::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
+void RenderSVGBlock::styleWillChange(StyleDifference diff, const RenderStyle* newStyle, StyleChangeState& state)
 {
     if (diff == StyleDifferenceLayout)
         setNeedsBoundariesUpdate();
-    RenderBlock::styleWillChange(diff, newStyle);
+    RenderBlock::styleWillChange(diff, newStyle, state);
 }
 
-void RenderSVGBlock::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
+void RenderSVGBlock::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle, const StyleChangeState& state)
 {
-    RenderBlock::styleDidChange(diff, oldStyle);
+    RenderBlock::styleDidChange(diff, oldStyle, state);
     SVGResourcesCache::clientStyleChanged(this, diff, style());
 }