Oilpan: move core/workers to oilpan's heap.

Source/core/workers/WorkerThread.cpp

Index: Source/core/workers/WorkerThread.cpp
diff --git a/Source/core/workers/WorkerThread.cpp b/Source/core/workers/WorkerThread.cpp
index 87f1e87f2c08365c7e09a7fb9257762c674bf665..58933c8ea10dd161fc4447fa0a820cbbeceb9ac9 100644
--- a/Source/core/workers/WorkerThread.cpp
+++ b/Source/core/workers/WorkerThread.cpp
@@ -49,6 +49,8 @@
 
 namespace WebCore {
 
+DEFINE_GC_INFO(WorkerThread);
+
 static Mutex& threadSetMutex()
 {
     AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex);
@@ -67,7 +69,7 @@ unsigned WorkerThread::workerThreadCount()
     return workerThreads().size();
 }
 
-WorkerThread::WorkerThread(WorkerLoaderProxy& workerLoaderProxy, WorkerReportingProxy& workerReportingProxy, PassOwnPtr<WorkerThreadStartupData> startupData)
+WorkerThread::WorkerThread(WorkerLoaderProxy& workerLoaderProxy, WorkerReportingProxy& workerReportingProxy, PassOwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData)
     : m_threadID(0)
     , m_workerLoaderProxy(workerLoaderProxy)
     , m_workerReportingProxy(workerReportingProxy)
@@ -136,7 +138,9 @@ void WorkerThread::workerThread()
 
     ThreadIdentifier threadID = m_threadID;
 
+#if !ENABLE(OILPAN)
     ASSERT(m_workerGlobalScope->hasOneRef());
+#endif
 
     // The below assignment will destroy the context, which will in turn notify messaging proxy.
     // We cannot let any objects survive past thread exit, because no other thread will run GC or otherwise destroy them.
@@ -253,4 +257,10 @@ void WorkerThread::releaseFastMallocFreeMemoryInAllThreads()
         (*it)->runLoop().postTask(adoptPtr(new ReleaseFastMallocFreeMemoryTask));
 }
 
+void WorkerThread::trace(Visitor* visitor)
+{
+    visitor->trace(m_workerGlobalScope);
+    visitor->trace(m_startupData);
+}
+
 } // namespace WebCore