Change CSS containment should invalidate layout

third_party/WebKit/Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. 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
@@ skipping 944 matching lines @@
     // logical relationship to the original element.
     //
     // LayoutBlocks are the one that handle laying out positioned elements,
     // thus this function is important during layout, to insert the positioned
     // elements into the correct LayoutBlock.
     //
     // See container() for the function that returns the containing block.
     // See LayoutBlock.h for some extra explanations on containing blocks.
     LayoutBlock* containingBlock() const;
 
-    bool canContainAbsolutePositionObjects() const
-    {
-        return isPositioned() || canContainFixedPositionObjects();
-    }
-
-    bool canContainFixedPositionObjects() const
-    {
-        return isLayoutView() || ((hasTransformRelatedProperty() || style()->containsPaint()) && isLayoutBlock()) || isSVGForeignObject();
-    }
+    bool canContainAbsolutePositionObjects() const { return m_style->canContainAbsolutePositionObjects() || canContainFixedPositionObjects(); }
+    bool canContainFixedPositionObjects() const { return isLayoutView() || isSVGForeignObject() || (isLayoutBlock() && m_style->canContainFixedPositionObjects()); }
 
     // Convert the given local point to absolute coordinates
     // FIXME: Temporary. If UseTransforms is true, take transforms into account. Eventually localToAbsolute() will always be transform-aware.
     FloatPoint localToAbsolute(const FloatPoint& localPoint = FloatPoint(), MapCoordinatesFlags = 0) const;
 
     // If the LayoutBoxModelObject ancestor is non-null, the input point is in the space of the ancestor.
     // Otherwise:
     //   If TraverseDocumentBoundaries is specified, the input point is in the space of the local root frame.
     //   Otherwise, the input point is in the space of the containing frame.
     FloatPoint ancestorToLocal(LayoutBoxModelObject*, const FloatPoint&, MapCoordinatesFlags = 0) const;
@@ skipping 1218 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h