Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/modules/storage/Storage.h

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 23 matching lines @@
 #include "wtf/Forward.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class ExceptionState;
 class LocalFrame;
 
 class Storage final : public GarbageCollectedFinalized<Storage>, public ScriptWrappable, public DOMWindowProperty {
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Storage);
+    USING_GARBAGE_COLLECTED_MIXIN(Storage);
 public:
     static Storage* create(LocalFrame*, StorageArea*);
     virtual ~Storage();
 
     unsigned length(ExceptionState& ec) const { return m_storageArea->length(ec, m_frame); }
     String key(unsigned index, ExceptionState& ec) const { return m_storageArea->key(index, ec, m_frame); }
     String getItem(const String& key, ExceptionState& ec) const { return m_storageArea->getItem(key, ec, m_frame); }
     void setItem(const String& key, const String& value, ExceptionState& ec) { m_storageArea->setItem(key, value, ec, m_frame); }
     void removeItem(const String& key, ExceptionState& ec) { m_storageArea->removeItem(key, ec, m_frame); }
     void clear(ExceptionState& ec) { m_storageArea->clear(ec, m_frame); }
@@ skipping 14 matching lines @@
 
 private:
     Storage(LocalFrame*, StorageArea*);
 
     Member<StorageArea> m_storageArea;
 };
 
 } // namespace blink
 
 #endif // Storage_h