Oilpan: move WorkerGlobalScope to oilpan's heap.

Source/modules/crypto/WorkerGlobalScopeCrypto.h

Index: Source/modules/crypto/WorkerGlobalScopeCrypto.h
diff --git a/Source/modules/crypto/WorkerGlobalScopeCrypto.h b/Source/modules/crypto/WorkerGlobalScopeCrypto.h
index 9937bb6f4cea387cec74c642ef2813a3d39e5ca9..36660423443a33b81c2a644b06c5d95f52420d99 100644
--- a/Source/modules/crypto/WorkerGlobalScopeCrypto.h
+++ b/Source/modules/crypto/WorkerGlobalScopeCrypto.h
@@ -31,6 +31,7 @@
 #ifndef WorkerGlobalScopeCrypto_h
 #define WorkerGlobalScopeCrypto_h
 
+#include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerSupplementable.h"
 #include "heap/Handle.h"
 
@@ -46,11 +47,13 @@ public:
     static WorkerCrypto* crypto(WorkerSupplementable&);
     WorkerCrypto* crypto() const;
 
+    virtual void trace(Visitor*);
+
 private:
     WorkerGlobalScopeCrypto();
     static const char* supplementName();
 
-    mutable RefPtrWillBePersistent<WorkerCrypto> m_crypto;
+    mutable RefPtrWillBeMember<WorkerCrypto> m_crypto;
 };
 
 } // namespace WebCore