Make ScriptStreamer and dependents Oilpan friendly.

Source/bindings/core/v8/WorkerScriptDebugServer.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 21 matching lines @@
 #include "bindings/core/v8/WorkerScriptDebugServer.h"
 
 #include "bindings/core/v8/V8ScriptRunner.h"
 #include "core/inspector/ScriptDebugListener.h"
 #include "core/inspector/WorkerDebuggerAgent.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerThread.h"
 #include "wtf/MessageQueue.h"
 #include <v8.h>
 
-
 namespace blink {
 
 WorkerScriptDebugServer::WorkerScriptDebugServer(WorkerGlobalScope* workerGlobalScope)
     : ScriptDebugServer(v8::Isolate::GetCurrent())
     , m_listener(0)
     , m_workerGlobalScope(workerGlobalScope)
 {
     ASSERT(m_isolate);
 }
 
+void WorkerScriptDebugServer::trace(Visitor* visitor)
+{
+    visitor->trace(m_workerGlobalScope);
+    ScriptDebugServer::trace(visitor);
+}
+
 void WorkerScriptDebugServer::addListener(ScriptDebugListener* listener)
 {
     v8::HandleScope scope(m_isolate);
     ASSERT(!m_listener);
 
     v8::Debug::SetDebugEventListener(&WorkerScriptDebugServer::v8DebugEventCallback, v8::External::New(m_isolate, this));
     ensureDebuggerScriptCompiled();
     m_listener = listener;
 
     v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext();
@@ skipping 46 matching lines @@
     if (m_listener)
         m_listener->didContinue();
 }
 
 void WorkerScriptDebugServer::quitMessageLoopOnPause()
 {
     // Nothing to do here in case of workers since runMessageLoopOnPause will check for paused state after each debugger command.
 }
 
 } // namespace blink