Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/animation/AnimationTimeline.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 91 matching lines @@
 #endif
     void wake();
     void resetForTesting();
 
     DECLARE_TRACE();
 
 protected:
     AnimationTimeline(Document*, PlatformTiming*);
 
 private:
-    RawPtrWillBeMember<Document> m_document;
+    Member<Document> m_document;
     double m_zeroTime;
     bool m_zeroTimeInitialized;
     unsigned m_outdatedAnimationCount;
     // Animations which will be updated on the next frame
     // i.e. current, in effect, or had timing changed
     HeapHashSet<Member<Animation>> m_animationsNeedingUpdate;
     HeapHashSet<WeakMember<Animation>> m_animations;
 
     double m_playbackRate;
 
@@ skipping 25 matching lines @@
         Member<AnimationTimeline> m_timeline;
         Timer<AnimationTimelineTiming> m_timer;
     };
 
     friend class AnimationAnimationTimelineTest;
 };
 
 } // namespace blink
 
 #endif