Index: Source/core/dom/Document.h |
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h |
index 27a7a42c915168588aa77574c47d1f46ad2646c4..849cc884a79c9db8631218f4caa41887cf32e128 100644 |
--- a/Source/core/dom/Document.h |
+++ b/Source/core/dom/Document.h |
@@ -204,7 +204,7 @@ public: |
void setObservedDocument(Document&); |
protected: |
- void trace(Visitor*); |
+ virtual void trace(Visitor*); |
private: |
void registerObserver(Document&); |