Begin tracking why layout is invalidated

Source/core/svg/SVGClipPathElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * 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.
  *
@@ skipping 46 matching lines @@
 }
 
 void SVGClipPathElement::childrenChanged(const ChildrenChange& change)
 {
     SVGGraphicsElement::childrenChanged(change);
 
     if (change.byParser)
         return;
 
     if (LayoutObject* object = layoutObject())
-        object->setNeedsLayoutAndFullPaintInvalidation();
+        object->setNeedsLayoutAndFullPaintInvalidation(LayoutInvalidationReason::Unknown);

[Erik Dahlström (inactive), 2015/03/23 09:17:17]

Should be LayoutInvalidationReason::ChildChanged, no?

 }
 
 LayoutObject* SVGClipPathElement::createLayoutObject(const LayoutStyle&)
 {
     return new LayoutSVGResourceClipper(this);
 }
 
 }