Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/dom/custom/CustomElementLifecycleCallbacks.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 21 matching lines @@
 #define CustomElementLifecycleCallbacks_h
 
 #include "platform/heap/Handle.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
 class Element;
 
-class CustomElementLifecycleCallbacks : public RefCountedWillBeGarbageCollectedFinalized<CustomElementLifecycleCallbacks> {
+class CustomElementLifecycleCallbacks : public GarbageCollectedFinalized<CustomElementLifecycleCallbacks> {
 public:
     virtual ~CustomElementLifecycleCallbacks() { }
 
     enum CallbackType {
         None                     = 0,
         CreatedCallback          = 1 << 0,
         AttachedCallback         = 1 << 1,
         DetachedCallback         = 1 << 2,
         AttributeChangedCallback = 1 << 3
     };
@@ skipping 10 matching lines @@
 protected:
     explicit CustomElementLifecycleCallbacks(CallbackType type) : m_callbackType(type) { }
 
 private:
     CallbackType m_callbackType;
 };
 
 } // namespace blink
 
 #endif // CustomElementLifecycleCallbacks_h