| Index: Source/core/inspector/InspectorDebuggerAgent.cpp | 
| diff --git a/Source/core/inspector/InspectorDebuggerAgent.cpp b/Source/core/inspector/InspectorDebuggerAgent.cpp | 
| index a3f7902aa3550e1a41f417645fdb9bac9168efe0..f60ddaeeba24adf90f6e9b76e7701c6f8246c4fc 100644 | 
| --- a/Source/core/inspector/InspectorDebuggerAgent.cpp | 
| +++ b/Source/core/inspector/InspectorDebuggerAgent.cpp | 
| @@ -1734,6 +1734,7 @@ DEFINE_TRACE(InspectorDebuggerAgent) | 
| { | 
| #if ENABLE(OILPAN) | 
| visitor->trace(m_injectedScriptManager); | 
| +    visitor->trace(m_debugger); | 
| visitor->trace(m_listener); | 
| visitor->trace(m_v8AsyncCallTracker); | 
| visitor->trace(m_promiseTracker); | 
|  |