Add an assertion to make sure NodeRenderingTraversal::parent is called after the distribution resul…

Source/core/css/resolver/ElementResolveContext.cpp

Index: Source/core/css/resolver/ElementResolveContext.cpp
diff --git a/Source/core/css/resolver/ElementResolveContext.cpp b/Source/core/css/resolver/ElementResolveContext.cpp
index 40008283689d0ecd3035fb2dba264d1b7621c678..1099c95edfc57829bad3446e1b9db9aaa010f039 100644
--- a/Source/core/css/resolver/ElementResolveContext.cpp
+++ b/Source/core/css/resolver/ElementResolveContext.cpp
@@ -43,6 +43,7 @@ ElementResolveContext::ElementResolveContext(Element& element)
     , m_elementLinkState(element.document().visitedLinkState().determineLinkState(element))
     , m_distributedToInsertionPoint(false)
 {
+    element.document().updateDistributionForNodeIfNeeded(&element);

[esprehn, 2014/08/13 09:10:51]

This is not correct, you shouldn't be updating distribution in the middle of
recalc style. Please put this at the top of the callstack that calls into this
code.

     NodeRenderingTraversal::ParentDetails parentDetails;
     m_parentNode = NodeRenderingTraversal::parent(&element, &parentDetails);
     m_distributedToInsertionPoint = parentDetails.insertionPoint();