Oilpan: have Navigator and its supplements be on the heap by default.

Source/modules/quota/NavigatorStorageQuota.h

 /*
  * Copyright (C) 2013 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 24 matching lines @@
 #include "modules/quota/DeprecatedStorageQuota.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class LocalFrame;
 class Navigator;
 class StorageQuota;
 
-class NavigatorStorageQuota final : public NoBaseWillBeGarbageCollected<NavigatorStorageQuota>, public WillBeHeapSupplement<Navigator>, public DOMWindowProperty {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NavigatorStorageQuota);
-    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(NavigatorStorageQuota);
+class NavigatorStorageQuota final : public GarbageCollectedFinalized<NavigatorStorageQuota>, public HeapSupplement<Navigator>, public DOMWindowProperty {
+    USING_GARBAGE_COLLECTED_MIXIN(NavigatorStorageQuota);
 public:
     static NavigatorStorageQuota& from(Navigator&);
+    virtual ~NavigatorStorageQuota();
 
     static StorageQuota* storageQuota(Navigator&);
     static DeprecatedStorageQuota* webkitTemporaryStorage(Navigator&);
     static DeprecatedStorageQuota* webkitPersistentStorage(Navigator&);
 
     StorageQuota* storageQuota() const;
     DeprecatedStorageQuota* webkitTemporaryStorage() const;
     DeprecatedStorageQuota* webkitPersistentStorage() const;
 
     DECLARE_TRACE();
 
 private:
     explicit NavigatorStorageQuota(LocalFrame*);
     static const char* supplementName();
 
-    mutable PersistentWillBeMember<StorageQuota> m_storageQuota;
-    mutable PersistentWillBeMember<DeprecatedStorageQuota> m_temporaryStorage;
-    mutable PersistentWillBeMember<DeprecatedStorageQuota> m_persistentStorage;
+    mutable Member<StorageQuota> m_storageQuota;
+    mutable Member<DeprecatedStorageQuota> m_temporaryStorage;
+    mutable Member<DeprecatedStorageQuota> m_persistentStorage;
 };
 
 } // namespace blink
 
 #endif // NavigatorStorageQuota_h