| Index: Source/core/frame/History.h
|
| diff --git a/Source/core/frame/History.h b/Source/core/frame/History.h
|
| index 250676451f7cab5d65d7166a06067ca3706278b4..b781985d78b082a51bc2ad7c75d6fee54d9d3536 100644
|
| --- a/Source/core/frame/History.h
|
| +++ b/Source/core/frame/History.h
|
| @@ -61,7 +61,7 @@ public:
|
|
|
| void stateObjectAdded(PassRefPtr<SerializedScriptValue>, const String& title, const String& url, FrameLoadType, ExceptionState&);
|
|
|
| - void trace(Visitor*) { }
|
| + virtual void trace(Visitor*) { }
|
|
|
| private:
|
| explicit History(LocalFrame*);
|
|
|