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

Source/core/workers/WorkerScriptLoader.cpp

Index: Source/core/workers/WorkerScriptLoader.cpp
diff --git a/Source/core/workers/WorkerScriptLoader.cpp b/Source/core/workers/WorkerScriptLoader.cpp
index ba33a8bca24cc0758143aa9a305e5f4c5ad7cdb6..2dae9b8b171265a0c7f4342ad841d840dadfa3af 100644
--- a/Source/core/workers/WorkerScriptLoader.cpp
+++ b/Source/core/workers/WorkerScriptLoader.cpp
@@ -40,6 +40,8 @@
 
 namespace WebCore {
 
+DEFINE_GC_INFO(WorkerScriptLoader);
+
 WorkerScriptLoader::WorkerScriptLoader()
     : m_client(0)
     , m_failed(false)
@@ -87,7 +89,7 @@ void WorkerScriptLoader::loadAsynchronously(ExecutionContext* executionContext,
     options.crossOriginRequestPolicy = crossOriginRequestPolicy;
 
     // During create, callbacks may happen which remove the last reference to this object.
-    RefPtr<WorkerScriptLoader> protect(this);
+    RefPtrWillBeRawPtr<WorkerScriptLoader> protect(this);
     m_threadableLoader = ThreadableLoader::create(executionContext, this, *request, options);
 }