Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/dom/NodeChildRemovalTracker.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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 26 matching lines @@
 public:
     explicit NodeChildRemovalTracker(Node&);
     ~NodeChildRemovalTracker();
 
     static bool isBeingRemoved(Node*);
 
 private:
     Node& node() const { return *m_node; }
     NodeChildRemovalTracker* previous() { return m_previous; }
 
-    RawPtrWillBeMember<Node> m_node;
+    Member<Node> m_node;
     // Using raw pointers are safe because these NodeChildRemovalTrackers are
     // guaranteed to be on a stack.
     NodeChildRemovalTracker* m_previous;
     static NodeChildRemovalTracker* s_last;
 };
 
 inline NodeChildRemovalTracker::NodeChildRemovalTracker(Node& node)
     : m_node(node)
     , m_previous(s_last)
 {
@@ skipping 11 matching lines @@
         if (removal->node().containsIncludingShadowDOM(node))
             return true;
     }
 
     return false;
 }
 
 } // namespace blink
 
 #endif