Change CSS containment should invalidate layout

third_party/WebKit/Source/core/style/ComputedStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 682 matching lines @@
         if (surround->padding != other.surround->padding)
             return true;
     }
 
     if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {
         if (rareNonInheritedData->m_alignContent != other.rareNonInheritedData->m_alignContent
             || rareNonInheritedData->m_alignItems != other.rareNonInheritedData->m_alignItems
             || rareNonInheritedData->m_alignSelf != other.rareNonInheritedData->m_alignSelf
             || rareNonInheritedData->m_justifyContent != other.rareNonInheritedData->m_justifyContent
             || rareNonInheritedData->m_justifyItems != other.rareNonInheritedData->m_justifyItems
-            || rareNonInheritedData->m_justifySelf != other.rareNonInheritedData->m_justifySelf)
+            || rareNonInheritedData->m_justifySelf != other.rareNonInheritedData->m_justifySelf
+            || rareNonInheritedData->m_contain != other.rareNonInheritedData->m_contain)
             return true;
 
         if (!RuntimeEnabledFeatures::cssBoxReflectFilterEnabled() && !rareNonInheritedData->reflectionDataEquivalent(*other.rareNonInheritedData.get()))
             return true;
     }
 
     return false;
 }
 
 bool ComputedStyle::diffNeedsPaintInvalidationSubtree(const ComputedStyle& other) const
@@ skipping 1159 matching lines @@
         if (value < 0)
             fvalue -= 0.5f;
         else
             fvalue += 0.5f;
     }
 
     return roundForImpreciseConversion<int>(fvalue / zoomFactor);
 }
 
 } // namespace blink