| Index: Source/core/page/EventHandler.cpp | 
| diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp | 
| index 1362f6b65a3d329c85fa0941c15ee9f43b6d1aa3..f85f42b28d5609377308b30e91eb998f5bbef69e 100644 | 
| --- a/Source/core/page/EventHandler.cpp | 
| +++ b/Source/core/page/EventHandler.cpp | 
| @@ -237,6 +237,7 @@ EventHandler::~EventHandler() | 
|  | 
| void EventHandler::trace(Visitor* visitor) | 
| { | 
| +#if ENABLE(OILPAN) | 
| visitor->trace(m_mousePressNode); | 
| visitor->trace(m_capturingMouseEventsNode); | 
| visitor->trace(m_nodeUnderMouse); | 
| @@ -251,6 +252,7 @@ void EventHandler::trace(Visitor* visitor) | 
| visitor->trace(m_scrollGestureHandlingNode); | 
| visitor->trace(m_previousGestureScrolledNode); | 
| visitor->trace(m_lastDeferredTapElement); | 
| +#endif | 
| } | 
|  | 
| DragState& EventHandler::dragState() | 
|  |