Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/dom/DOMStringMap.h

 /*
  * Copyright (C) 2010 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 20 matching lines @@
 #include "bindings/core/v8/V8Binding.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Element;
 
-class DOMStringMap : public NoBaseWillBeGarbageCollected<DOMStringMap>, public ScriptWrappable {
-    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(DOMStringMap);
+class DOMStringMap : public GarbageCollected<DOMStringMap>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
-    USING_FAST_MALLOC_WILL_BE_REMOVED(DOMStringMap);
     WTF_MAKE_NONCOPYABLE(DOMStringMap);
 public:
 #if !ENABLE(OILPAN)
     virtual void ref() = 0;
     virtual void deref() = 0;
 #endif
 
     virtual void getNames(Vector<String>&) = 0;
     virtual String item(const String& name) = 0;
     virtual bool contains(const String& name) = 0;
@@ skipping 32 matching lines @@
 
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
 protected:
     DOMStringMap() { }
 };
 
 } // namespace blink
 
 #endif // DOMStringMap_h