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base/scoped_vector.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_SCOPED_VECTOR_H_
 #define BASE_SCOPED_VECTOR_H_
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/stl_util-inl.h"
 
 // ScopedVector wraps a vector deleting the elements from its
 // destructor.
 template <class T>
 class ScopedVector {
  public:
   typedef typename std::vector<T*>::iterator iterator;
   typedef typename std::vector<T*>::const_iterator const_iterator;
+  typedef typename std::vector<T*>::reverse_iterator reverse_iterator;
+  typedef typename std::vector<T*>::const_reverse_iterator
+      const_reverse_iterator;
 
   ScopedVector() {}
   ~ScopedVector() { reset(); }
 
   std::vector<T*>* operator->() { return &v; }
   const std::vector<T*>* operator->() const { return &v; }
   T* operator[](size_t i) { return v[i]; }
   const T* operator[](size_t i) const { return v[i]; }
 
   bool empty() const { return v.empty(); }
   size_t size() const { return v.size(); }
 
+  reverse_iterator rbegin() { return v.rbegin(); }
+  const_reverse_iterator rbegin() const { return v.rbegin(); }
+  reverse_iterator rend() { return v.rend(); }
+  const_reverse_iterator rend() const { return v.rend(); }
+
   iterator begin() { return v.begin(); }
   const_iterator begin() const { return v.begin(); }
   iterator end() { return v.end(); }
   const_iterator end() const { return v.end(); }
 
   void push_back(T* elem) { v.push_back(elem); }
 
   std::vector<T*>& get() { return v; }
   const std::vector<T*>& get() const { return v; }
   void swap(ScopedVector<T>& other) { v.swap(other.v); }
   void release(std::vector<T*>* out) {
     out->swap(v);
     v.clear();
   }
 
   void reset() { STLDeleteElements(&v); }
 
  private:
   std::vector<T*> v;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedVector);
 };
 
 #endif  // BASE_SCOPED_VECTOR_H_