Removed RefPtr::Release.

third_party/WebKit/Source/platform/wtf/RefPtr.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc.
  *  All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
@@ skipping 62 matching lines @@
   RefPtr(HashTableDeletedValueType) : ptr_(HashTableDeletedValue()) {}
   bool IsHashTableDeletedValue() const {
     return ptr_ == HashTableDeletedValue();
   }
 
   ALWAYS_INLINE ~RefPtr() { DerefIfNotNull(ptr_); }
 
   ALWAYS_INLINE T* Get() const { return ptr_; }
   T* LeakRef() WARN_UNUSED_RESULT;
   void Clear();
-  PassRefPtr<T> Release() WARN_UNUSED_RESULT { return std::move(*this); }
 
   T& operator*() const { return *ptr_; }
   ALWAYS_INLINE T* operator->() const { return ptr_; }
 
   bool operator!() const { return !ptr_; }
   explicit operator bool() const { return ptr_ != nullptr; }
 
   RefPtr& operator=(RefPtr o) {
     Swap(o);
     return *this;
@@ skipping 134 matching lines @@
   Adopted(p);
   return RefPtr<T>(p, RefPtr<T>::kAdoptRef);
 }
 
 }  // namespace WTF
 
 using WTF::RefPtr;
 using WTF::AdoptRef;
 
 #endif  // WTF_RefPtr_h