Replace LayoutObject::skipInvalidationWhenLaidOutChildren() with paintedOutputOfObjectHasNoEffect

third_party/WebKit/Source/core/layout/svg/LayoutSVGHiddenContainer.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 22 matching lines @@
     explicit LayoutSVGHiddenContainer(SVGElement*);
 
     const char* name() const override { return "LayoutSVGHiddenContainer"; }
 
 protected:
     void layout() override;
 
     bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGHiddenContainer || LayoutSVGContainer::isOfType(type); }
 
 private:
-    void paint(const PaintInfo&, const LayoutPoint&) const final;
+    // LayoutSVGHiddenContainer paints nothing.
+    void paint(const PaintInfo&, const LayoutPoint&) const final { }
+    bool canSkipUnforcedPaintInvalidation() const final { return true; }
     LayoutRect absoluteClippedOverflowRect() const final { return LayoutRect(); }
     FloatRect paintInvalidationRectInLocalSVGCoordinates() const final { return FloatRect(); }
-    void absoluteQuads(Vector<FloatQuad>&) const final;
+    void absoluteQuads(Vector<FloatQuad>&) const final { }
 
     bool nodeAtFloatPoint(HitTestResult&, const FloatPoint& pointInParent, HitTestAction) final;
 };
 } // namespace blink
 
 #endif // LayoutSVGHiddenContainer_h