Oilpan: Prepare moving InspectorController and InspectorAgents to oilpan.

Source/core/workers/WorkerGlobalScope.cpp

Index: Source/core/workers/WorkerGlobalScope.cpp
diff --git a/Source/core/workers/WorkerGlobalScope.cpp b/Source/core/workers/WorkerGlobalScope.cpp
index 1b89c2ea74710865777114b0778cdc8ea73e86fb..ca9bdd74ffb48ed6d58301a6e016eb01b66337a9 100644
--- a/Source/core/workers/WorkerGlobalScope.cpp
+++ b/Source/core/workers/WorkerGlobalScope.cpp
@@ -81,7 +81,7 @@ WorkerGlobalScope::WorkerGlobalScope(const KURL& url, const String& userAgent, W
     , m_userAgent(userAgent)
     , m_script(adoptPtr(new WorkerScriptController(*this)))
     , m_thread(thread)
-    , m_workerInspectorController(adoptPtr(new WorkerInspectorController(this)))
+    , m_workerInspectorController(adoptPtrWillBeNoop(new WorkerInspectorController(this)))
     , m_closing(false)
     , m_eventQueue(WorkerEventQueue::create(this))
     , m_workerClients(workerClients)
@@ -182,8 +182,12 @@ void WorkerGlobalScope::postTask(PassOwnPtr<ExecutionContextTask> task)
     thread()->runLoop().postTask(task);
 }
 
+// FIXME: Called twice, from WorkerThreadShutdownFinishTask and WorkerGlobalScope::dispose.
 void WorkerGlobalScope::clearInspector()
 {
+    if (!m_workerInspectorController)
+        return;
+    m_workerInspectorController->dispose();
     m_workerInspectorController.clear();
 }
 
@@ -338,6 +342,7 @@ void WorkerGlobalScope::trace(Visitor* visitor)
     visitor->trace(m_console);
     visitor->trace(m_location);
     visitor->trace(m_navigator);
+    visitor->trace(m_workerInspectorController);
     visitor->trace(m_eventQueue);
     visitor->trace(m_workerClients);
     WillBeHeapSupplementable<WorkerGlobalScope>::trace(visitor);