Remove unnecessary paintContainer parameter from addFocusRingRects

Source/core/rendering/RenderBox.h

Index: Source/core/rendering/RenderBox.h
diff --git a/Source/core/rendering/RenderBox.h b/Source/core/rendering/RenderBox.h
index 13ceb48cc4485dd7d5c5ea4e943464795a80deeb..0dc27147f21e9d0e97c9cd9a70a68b0612504eb4 100644
--- a/Source/core/rendering/RenderBox.h
+++ b/Source/core/rendering/RenderBox.h
@@ -179,7 +179,7 @@ public:
     // does include the intrinsic padding in the content box as this is what some callers expect (like getComputedStyle).
     LayoutRect computedCSSContentBoxRect() const { return LayoutRect(borderLeft() + computedCSSPaddingLeft(), borderTop() + computedCSSPaddingTop(), clientWidth() - computedCSSPaddingLeft() - computedCSSPaddingRight(), clientHeight() - computedCSSPaddingTop() - computedCSSPaddingBottom()); }
 
-    virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer) const override;
+    virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset) const override;
 
     // Use this with caution! No type checking is done!
     RenderBox* previousSiblingBox() const;