Remove stl_util's STLDeleteContainerPairPointers.

base/stl_util.h

 // Copyright (c) 2011 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.
 
 // Derived from google3/util/gtl/stl_util.h
 
 #ifndef BASE_STL_UTIL_H_
 #define BASE_STL_UTIL_H_
 
 #include <algorithm>
@@ skipping 30 matching lines @@
 template <class ForwardIterator>
 void STLDeleteContainerPointers(ForwardIterator begin, ForwardIterator end) {
   while (begin != end) {
     ForwardIterator temp = begin;
     ++begin;
     delete *temp;
   }
 }
 
 // For a range within a container of pairs, calls delete (non-array version) on
-// BOTH items in the pairs.
-// NOTE: Like STLDeleteContainerPointers, it is important that this deletes
-// behind the iterator because if both the key and value are deleted, the
-// container may call the hash function on the iterator when it is advanced,
-// which could result in the hash function trying to dereference a stale
-// pointer.
-template <class ForwardIterator>
-void STLDeleteContainerPairPointers(ForwardIterator begin,
-                                    ForwardIterator end) {
-  while (begin != end) {
-    ForwardIterator temp = begin;
-    ++begin;
-    delete temp->first;
-    delete temp->second;
-  }
-}
-
-// For a range within a container of pairs, calls delete (non-array version) on
 // the FIRST item in the pairs.
 // NOTE: Like STLDeleteContainerPointers, deleting behind the iterator.
 template <class ForwardIterator>
 void STLDeleteContainerPairFirstPointers(ForwardIterator begin,
                                          ForwardIterator end) {
   while (begin != end) {
     ForwardIterator temp = begin;
     ++begin;
     delete temp->first;
   }
@@ skipping 174 matching lines @@
 bool STLIncludes(const Arg1& a1, const Arg2& a2) {
   DCHECK(STLIsSorted(a1));
   DCHECK(STLIsSorted(a2));
   return std::includes(a1.begin(), a1.end(),
                        a2.begin(), a2.end());
 }
 
 }  // namespace base
 
 #endif  // BASE_STL_UTIL_H_