Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/platform/LifecycleNotifier.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * 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:
  * 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
@@ skipping 16 matching lines @@
 #ifndef LifecycleNotifier_h
 #define LifecycleNotifier_h
 
 #include "platform/heap/Handle.h"
 #include "wtf/HashSet.h"
 #include "wtf/TemporaryChange.h"
 
 namespace blink {
 
 template<typename T, typename Observer>
-class LifecycleNotifier : public virtual WillBeGarbageCollectedMixin {
+class LifecycleNotifier : public virtual GarbageCollectedMixin {
 public:
     virtual ~LifecycleNotifier();
 
     void addObserver(Observer*);
     void removeObserver(Observer*);
 
     // notifyContextDestroyed() should be explicitly dispatched from an
     // observed context to notify observers that contextDestroyed().
     //
     // When contextDestroyed() is called, the observer's lifecycleContext()
@@ skipping 17 matching lines @@
     }
 
     enum IterationType {
         IteratingNone,
         IteratingOverAll,
     };
 
     IterationType m_iterating;
 
 protected:
-    using ObserverSet = WillBeHeapHashSet<RawPtrWillBeWeakMember<Observer>>;
+    using ObserverSet = HeapHashSet<WeakMember<Observer>>;
 
     ObserverSet m_observers;
 
 #if ENABLE(ASSERT)
     T* context() { return static_cast<T*>(this); }
 #endif
 
 private:
     bool m_didCallContextDestroyed;
 };
@@ skipping 13 matching lines @@
 }
 
 template<typename T, typename Observer>
 inline void LifecycleNotifier<T, Observer>::notifyContextDestroyed()
 {
     // Don't notify contextDestroyed() twice.
     if (m_didCallContextDestroyed)
         return;
 
     TemporaryChange<IterationType> scope(m_iterating, IteratingOverAll);
-    Vector<RawPtrWillBeUntracedMember<Observer>> snapshotOfObservers;
+    Vector<UntracedMember<Observer>> snapshotOfObservers;
     copyToVector(m_observers, snapshotOfObservers);
     for (Observer* observer : snapshotOfObservers) {
         // FIXME: Oilpan: At the moment, it's possible that the Observer is
         // destructed during the iteration.
         // Once we enable Oilpan by default for Observers *and*
         // Observer::contextDestroyed() does not call removeObserver(),
         // we can remove the hack by making m_observers
         // a HeapHashSet<WeakMember<Observers>>. (i.e., we can just iterate
         // m_observers without taking a snapshot).
         if (m_observers.contains(observer)) {
@@ skipping 14 matching lines @@
 
 template<typename T, typename Observer>
 inline void LifecycleNotifier<T, Observer>::removeObserver(Observer* observer)
 {
     m_observers.remove(observer);
 }
 
 } // namespace blink
 
 #endif // LifecycleNotifier_h