Remove stl_util's STLDeleteContainerPairSecondPointers from ui/.

ui/views/accessibility/ax_aura_obj_cache.h

 // Copyright 2014 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 UI_VIEWS_ACCESSIBILITY_AX_AURA_OBJ_CACHE_H_
 #define UI_VIEWS_ACCESSIBILITY_AX_AURA_OBJ_CACHE_H_
 
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "ui/aura/client/focus_change_observer.h"
 #include "ui/aura/window_observer.h"
 #include "ui/views/views_export.h"
 
 namespace base {
 template <typename T> struct DefaultSingletonTraits;
 }
@@ skipping 91 matching lines @@
       const std::map<AuraView*, int32_t>& aura_view_to_id_map) const;
 
   template <typename AuraView>
   void RemoveInternal(AuraView* aura_view,
                       std::map<AuraView*, int32_t>& aura_view_to_id_map);
 
   std::map<views::View*, int32_t> view_to_id_map_;
   std::map<views::Widget*, int32_t> widget_to_id_map_;
   std::map<aura::Window*, int32_t> window_to_id_map_;
 
-  std::map<int32_t, AXAuraObjWrapper*> cache_;
+  std::map<int32_t, std::unique_ptr<AXAuraObjWrapper>> cache_;
   int32_t current_id_;
 
   aura::client::FocusClient* focus_client_;
 
   // True immediately when entering this object's destructor.
   bool is_destroying_;
 
   Delegate* delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(AXAuraObjCache);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_ACCESSIBILITY_AX_AURA_OBJ_CACHE_H_