Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/wtf/LinkedStack.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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef LinkedStack_h
 #define LinkedStack_h
 
 #include "wtf/Allocator.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
+#include "wtf/OwnPtr.h"
 
 namespace WTF {
 
 template <typename T>
 class LinkedStack {
     USING_FAST_MALLOC(LinkedStack);
 public:
     LinkedStack() : m_size(0) { }
 
     // Iterative cleanup to prevent stack overflow problems.
     ~LinkedStack()
     {
-        std::unique_ptr<Node> ptr = m_head.release();
+        OwnPtr<Node> ptr = m_head.release();
         while (ptr)
             ptr = ptr->m_next.release();
     }
 
     bool isEmpty();
 
     void push(const T&);
     const T& peek();
     void pop();
 
     size_t size();
 
 private:
     class Node {
         USING_FAST_MALLOC(LinkedStack::Node);
     public:
-        Node(const T&, std::unique_ptr<Node> next);
+        Node(const T&, PassOwnPtr<Node> next);
 
         T m_data;
-        std::unique_ptr<Node> m_next;
+        OwnPtr<Node> m_next;
     };
 
-    std::unique_ptr<Node> m_head;
+    OwnPtr<Node> m_head;
     size_t m_size;
 };
 
 template <typename T>
-LinkedStack<T>::Node::Node(const T& data, std::unique_ptr<Node> next)
+LinkedStack<T>::Node::Node(const T& data, PassOwnPtr<Node> next)
     : m_data(data)
     , m_next(next)
 {
 }
 
 template <typename T>
 inline bool LinkedStack<T>::isEmpty()
 {
     return !m_head;
 }
 
 template <typename T>
 inline void LinkedStack<T>::push(const T& data)
 {
-    m_head = wrapUnique(new Node(data, m_head.release()));
+    m_head = adoptPtr(new Node(data, m_head.release()));
     ++m_size;
 }
 
 template <typename T>
 inline const T& LinkedStack<T>::peek()
 {
     return m_head->m_data;
 }
 
 template <typename T>
 inline void LinkedStack<T>::pop()
 {
     ASSERT(m_head && m_size);
     m_head = m_head->m_next.release();
     --m_size;
 }
 
 template <typename T>
 inline size_t LinkedStack<T>::size()
 {
     return m_size;
 }
 
 } // namespace WTF
 
 using WTF::LinkedStack;
 
 #endif