1 files changed, 5 insertions, 1 deletions
diff --git a/Source/WebCore/rendering/RenderNamedFlowThread.h b/Source/WebCore/rendering/RenderNamedFlowThread.h
index 3199307cf..a833151bf 100644
--- a/Source/WebCore/rendering/RenderNamedFlowThread.h
+++ b/Source/WebCore/rendering/RenderNamedFlowThread.h
@@ -50,6 +50,8 @@ public:
 
     const AtomicString& flowThreadName() const;
 
+    const RenderRegionList& invalidRenderRegionList() const { return m_invalidRegionList; }
+
     RenderObject* nextRendererForNode(Node*) const;
     RenderObject* previousRendererForNode(Node*) const;
 
@@ -86,7 +88,7 @@ private:
     void addDependencyOnFlowThread(RenderNamedFlowThread*);
     void removeDependencyOnFlowThread(RenderNamedFlowThread*);
     void checkInvalidRegions();
-    bool canBeDestroyed() const { return m_regionList.isEmpty() && m_contentNodes.isEmpty(); }
+    bool canBeDestroyed() const { return m_invalidRegionList.isEmpty() && m_regionList.isEmpty() && m_contentNodes.isEmpty(); }
     void regionLayoutUpdateEventTimerFired(Timer<RenderNamedFlowThread>*);
     void clearContentNodes();
 
@@ -107,6 +109,8 @@ private:
 
     NamedFlowContentNodes m_contentNodes;
 
+    RenderRegionList m_invalidRegionList;
+
     // The DOM Object that represents a named flow.
     RefPtr<WebKitNamedFlow> m_namedFlow;