Kill ScopedPtrMap and friends

base/containers/scoped_ptr_map.h

-// Copyright 2015 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_CONTAINERS_SCOPED_PTR_MAP_H_
-#define BASE_CONTAINERS_SCOPED_PTR_MAP_H_
-
-#include <functional>
-#include <map>
-#include <utility>
-
-#include "base/basictypes.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/stl_util.h"
-
-namespace base {
-
-// ScopedPtrMap provides a std::map that supports scoped_ptr values. It ensures
-// that the map's values are properly deleted when removed from the map, or when
-// the map is destroyed.
-//
-// |ScopedPtr| must be a type scoped_ptr<T>. This is for compatibility with
-// std::map in C++11.
-//
-// TODO(http://crbug.com/554291): DEPRECATED: Use std::map instead (now that we
-// have support for moveable types inside containers).
-template <class Key, class ScopedPtr, class Compare = std::less<Key>>
-class ScopedPtrMap {
-  using Container = std::map<Key, typename ScopedPtr::element_type*, Compare>;
- public:
-  using allocator_type = typename Container::allocator_type;
-  using size_type = typename Container::size_type;
-  using difference_type = typename Container::difference_type;
-  using reference = typename Container::reference;
-  using const_reference = typename Container::const_reference;
-  using key_type = typename Container::key_type;
-  using mapped_type = ScopedPtr;
-  using key_compare = typename Container::key_compare;
-  using const_iterator = typename Container::const_iterator;
-  using const_reverse_iterator = typename Container::const_reverse_iterator;
-
-  ScopedPtrMap() {}
-  ~ScopedPtrMap() { clear(); }
-  ScopedPtrMap(ScopedPtrMap&& other) { swap(other); }
-
-  ScopedPtrMap& operator=(ScopedPtrMap&& rhs) {
-    swap(rhs);
-    return *this;
-  }
-
-  const_iterator find(const Key& k) const { return data_.find(k); }
-  size_type count(const Key& k) const { return data_.count(k); }
-
-  bool empty() const { return data_.empty(); }
-  size_t size() const { return data_.size(); }
-
-  const_reverse_iterator rbegin() const { return data_.rbegin(); }
-  const_reverse_iterator rend() const { return data_.rend(); }
-
-  const_iterator begin() const { return data_.begin(); }
-  const_iterator end() const { return data_.end(); }
-
-  void swap(ScopedPtrMap& other) { data_.swap(other.data_); }
-
-  void clear() { STLDeleteValues(&data_); }
-
-  // Inserts |val| into the map, associated with |key|.
-  std::pair<const_iterator, bool> insert(const Key& key, ScopedPtr val) {
-    auto result = data_.insert(std::make_pair(key, val.get()));
-    if (result.second)
-      ::ignore_result(val.release());
-    return result;
-  }
-
-  // Inserts |val| into the map, associated with |key|. Overwrites any existing
-  // element at |key|.
-  void set(const Key& key, ScopedPtr val) {
-    typename ScopedPtr::element_type*& val_ref = data_[key];
-    delete val_ref;
-    val_ref = val.release();
-  }
-
-  void erase(const_iterator position) {
-    DCHECK(position != end());
-    delete position->second;
-    // Key-based lookup (cannot use const_iterator overload in C++03 library).
-    data_.erase(position->first);
-  }
-
-  size_type erase(const Key& k) {
-    typename Container::iterator it = data_.find(k);
-    if (it == end())
-      return 0;
-
-    delete it->second;
-    data_.erase(it);
-    return 1;
-  }
-
-  void erase(const_iterator first, const_iterator last) {
-    STLDeleteContainerPairSecondPointers(first, last);
-    // Need non-const iterators as required by the C++03 library.
-    data_.erase(ConstIteratorToIterator(first), ConstIteratorToIterator(last));
-  }
-
-  // Like |erase()|, but returns the element instead of deleting it.
-  ScopedPtr take_and_erase(const_iterator position) {
-    DCHECK(position != end());
-    if (position == end())
-      return ScopedPtr();
-
-    ScopedPtr ret(position->second);
-    // Key-based lookup (cannot use const_iterator overload in C++03 library).
-    data_.erase(position->first);
-    return ret;
-  }
-
-  // Like |erase()|, but returns the element instead of deleting it.
-  ScopedPtr take_and_erase(const Key& k) {
-    typename Container::iterator it = data_.find(k);
-    if (it == end())
-      return ScopedPtr();
-
-    ScopedPtr ret(it->second);
-    data_.erase(it);
-    return ret;
-  }
-
- private:
-  Container data_;
-
-  typename Container::iterator ConstIteratorToIterator(const_iterator it) {
-    // This is the only way to convert a const iterator to a non-const iterator
-    // in C++03 (get the key and do the lookup again).
-    if (it == data_.end())
-      return data_.end();
-    return data_.find(it->first);
-  };
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedPtrMap);
-};
-
-}  // namespace base
-
-#endif  // BASE_CONTAINERS_SCOPED_PTR_MAP_H_