Index: Source/core/dom/Document.h |
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h |
index d7dfed11c3a2950a1169c0233d6b18e474af9fcf..94a371939261ac40c29d0ef281709f967ab3c1c8 100644 |
--- a/Source/core/dom/Document.h |
+++ b/Source/core/dom/Document.h |
@@ -206,7 +206,7 @@ public: |
void setObservedDocument(Document&); |
protected: |
- void trace(Visitor*); |
+ virtual void trace(Visitor*); |
private: |
void registerObserver(Document&); |