Remove stl_util's STLValueDeleter.

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 137 matching lines @@
 template<class T>
 class STLElementDeleter {
  public:
   STLElementDeleter<T>(T* container) : container_(container) {}
   ~STLElementDeleter<T>() { STLDeleteElements(container_); }
 
  private:
   T* container_;
 };
 
-// Given a pointer to an STL container this class will delete all the value
-// pointers when it goes out of scope.
-template<class T>
-class STLValueDeleter {
- public:
-  STLValueDeleter<T>(T* container) : container_(container) {}
-  ~STLValueDeleter<T>() { STLDeleteValues(container_); }
-
- private:
-  T* container_;
-};
-
 // Test to see if a set, map, hash_set or hash_map contains a particular key.
 // Returns true if the key is in the collection.
 template <typename Collection, typename Key>
 bool ContainsKey(const Collection& collection, const Key& key) {
   return collection.find(key) != collection.end();
 }
 
 // Test to see if a collection like a vector contains a particular value.
 // Returns true if the value is in the collection.
 template <typename Collection, typename Value>
@@ skipping 55 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_