Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/InspectorBaseAgent.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/inspector/InspectorBaseAgent.h"
 
 #include "core/inspector/InspectorState.h"
+#include "core/inspector/InstrumentingAgents.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
 
 InspectorAgent::InspectorAgent(const String& name)
     : m_name(name)
 {
 }
 
 InspectorAgent::~InspectorAgent()
 {
 }
 
+void InspectorAgent::trace(Visitor* visitor)
+{
+    visitor->trace(m_instrumentingAgents);
+}
+
 void InspectorAgent::appended(InstrumentingAgents* instrumentingAgents, InspectorState* inspectorState)
 {
     m_instrumentingAgents = instrumentingAgents;
     m_state = inspectorState;
     init();
 }
 
 InspectorAgentRegistry::InspectorAgentRegistry(InstrumentingAgents* instrumentingAgents, InspectorCompositeState* inspectorState)
     : m_instrumentingAgents(instrumentingAgents)
     , m_inspectorState(inspectorState)
 {
 }
 
-void InspectorAgentRegistry::append(PassOwnPtr<InspectorAgent> agent)
+void InspectorAgentRegistry::append(PassOwnPtrWillBeRawPtr<InspectorAgent> agent)
 {
     agent->appended(m_instrumentingAgents, m_inspectorState->createAgentState(agent->name()));
-    m_agents.append(agent);
+    m_agents.append(agent.get());
 }
 
 void InspectorAgentRegistry::setFrontend(InspectorFrontend* frontend)
 {
     for (size_t i = 0; i < m_agents.size(); i++)
         m_agents[i]->setFrontend(frontend);
 }
 
 void InspectorAgentRegistry::clearFrontend()
 {
@@ skipping 18 matching lines @@
     for (size_t i = 0; i < m_agents.size(); i++)
         m_agents[i]->discardAgent();
 }
 
 void InspectorAgentRegistry::flushPendingFrontendMessages()
 {
     for (size_t i = 0; i < m_agents.size(); i++)
         m_agents[i]->flushPendingFrontendMessages();
 }
 
+void InspectorAgentRegistry::trace(Visitor* visitor)
+{
+    visitor->trace(m_agents);
+    visitor->trace(m_instrumentingAgents);
+}
+
 } // namespace WebCore