Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/WorkerInspectorController.cpp

Index: Source/core/inspector/WorkerInspectorController.cpp
diff --git a/Source/core/inspector/WorkerInspectorController.cpp b/Source/core/inspector/WorkerInspectorController.cpp
index b63e19f60036e1118af5822016d1688e36a71108..f50aba9b58863f2841768ab6ac40e319567cfd5a 100644
--- a/Source/core/inspector/WorkerInspectorController.cpp
+++ b/Source/core/inspector/WorkerInspectorController.cpp
@@ -95,17 +95,17 @@ WorkerInspectorController::WorkerInspectorController(WorkerGlobalScope* workerGl
     , m_instrumentingAgents(InstrumentingAgents::create())
     , m_injectedScriptManager(InjectedScriptManager::createForWorker())
     , m_debugServer(adoptPtr(new WorkerScriptDebugServer(workerGlobalScope)))
-    , m_agents(m_instrumentingAgents.get(), m_state.get())
+    , m_agents(adoptPtrWillBeNoop(new InspectorAgentRegistry(m_instrumentingAgents.get(), m_state.get())))
 {
-    m_agents.append(WorkerRuntimeAgent::create(m_injectedScriptManager.get(), m_debugServer.get(), workerGlobalScope));
+    m_agents->append(WorkerRuntimeAgent::create(m_injectedScriptManager.get(), m_debugServer.get(), workerGlobalScope));
 
-    OwnPtr<InspectorTimelineAgent> timelineAgent = InspectorTimelineAgent::create(0, 0, 0, InspectorTimelineAgent::WorkerInspector, 0);
-    m_agents.append(WorkerDebuggerAgent::create(m_debugServer.get(), workerGlobalScope, m_injectedScriptManager.get()));
+    OwnPtrWillBeRawPtr<InspectorTimelineAgent> timelineAgent = InspectorTimelineAgent::create(0, 0, 0, InspectorTimelineAgent::WorkerInspector, 0);
+    m_agents->append(WorkerDebuggerAgent::create(m_debugServer.get(), workerGlobalScope, m_injectedScriptManager.get()));
 
-    m_agents.append(InspectorProfilerAgent::create(m_injectedScriptManager.get(), 0));
-    m_agents.append(InspectorHeapProfilerAgent::create(m_injectedScriptManager.get()));
-    m_agents.append(WorkerConsoleAgent::create(timelineAgent.get(), m_injectedScriptManager.get()));
-    m_agents.append(timelineAgent.release());
+    m_agents->append(InspectorProfilerAgent::create(m_injectedScriptManager.get(), 0));
+    m_agents->append(InspectorHeapProfilerAgent::create(m_injectedScriptManager.get()));
+    m_agents->append(WorkerConsoleAgent::create(timelineAgent.get(), m_injectedScriptManager.get()));
+    m_agents->append(timelineAgent.release());
 
     m_injectedScriptManager->injectedScriptHost()->init(m_instrumentingAgents.get(), m_debugServer.get());
 }
@@ -123,8 +123,8 @@ void WorkerInspectorController::connectFrontend()
     m_frontendChannel = adoptPtr(new PageInspectorProxy(m_workerGlobalScope));
     m_frontend = adoptPtr(new InspectorFrontend(m_frontendChannel.get()));
     m_backendDispatcher = InspectorBackendDispatcher::create(m_frontendChannel.get());
-    m_agents.registerInDispatcher(m_backendDispatcher.get());
-    m_agents.setFrontend(m_frontend.get());
+    m_agents->registerInDispatcher(m_backendDispatcher.get());
+    m_agents->setFrontend(m_frontend.get());
     InspectorInstrumentation::frontendCreated();
 }
 
@@ -137,7 +137,7 @@ void WorkerInspectorController::disconnectFrontend()
     // Destroying agents would change the state, but we don't want that.
     // Pre-disconnect state will be used to restore inspector agents.
     m_state->mute();
-    m_agents.clearFrontend();
+    m_agents->clearFrontend();
     m_frontend.clear();
     InspectorInstrumentation::frontendDeleted();
     m_frontendChannel.clear();
@@ -149,7 +149,7 @@ void WorkerInspectorController::restoreInspectorStateFromCookie(const String& in
     connectFrontend();
     m_state->loadFromCookie(inspectorCookie);
 
-    m_agents.restore();
+    m_agents->restore();
 }
 
 void WorkerInspectorController::dispatchMessageFromFrontend(const String& message)