Oilpan: Reduce FIXME(OILPAN) from the code base

Source/wtf/RawPtr.h

 /*
  * Copyright (C) 2014 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 57 matching lines @@
         : m_ptr(other.get())
     {
     }
 
     // Hash table deleted values, which are only constructed and never copied or destroyed.
     RawPtr(HashTableDeletedValueType) : m_ptr(hashTableDeletedValue()) { }
     bool isHashTableDeletedValue() const { return m_ptr == hashTableDeletedValue(); }
 
     T* get() const { return m_ptr; }
     void clear() { m_ptr = 0; }
-    // FIXME: oilpan: Remove release and leakRef once we remove RefPtrWillBeRawPtr.
     RawPtr<T> release()
     {
         RawPtr<T> tmp = m_ptr;
         m_ptr = 0;
         return tmp;
     }
     T* leakRef()
     {
         T* ptr = m_ptr;
         m_ptr = 0;
@@ skipping 51 matching lines @@
 template<typename T> inline T* getPtr(const RawPtr<T>& p)
 {
     return p.get();
 }
 
 } // namespace WTF
 
 using WTF::RawPtr;
 
 #endif