Pass a struct to ContainerNode::childrenChanged() instead of separate arguments

Source/core/svg/SVGFontFaceSrcElement.h

Index: Source/core/svg/SVGFontFaceSrcElement.h
diff --git a/Source/core/svg/SVGFontFaceSrcElement.h b/Source/core/svg/SVGFontFaceSrcElement.h
index 5dd85481cc964a737843631d771c68ec710776bf..c18c1bbc77ab6bdcdec2a77ffff441fee8dbb08a 100644
--- a/Source/core/svg/SVGFontFaceSrcElement.h
+++ b/Source/core/svg/SVGFontFaceSrcElement.h
@@ -37,7 +37,7 @@ public:
 private:
     explicit SVGFontFaceSrcElement(Document&);
 
-    virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0) OVERRIDE;
+    virtual void childrenChanged(const ChildrenChange&) OVERRIDE;
     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE { return false; }
 };