Rewrite simple uses of base::ListValue::Append() taking a raw pointer var.

chrome/browser/ui/webui/cookies_tree_model_util.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/webui/cookies_tree_model_util.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
@@ skipping 291 matching lines @@
       break;
   }
 
 #if defined(ENABLE_EXTENSIONS)
   const extensions::ExtensionSet* protecting_apps =
       node.GetModel()->ExtensionsProtectingNode(node);
   if (protecting_apps && !protecting_apps->is_empty()) {
     base::ListValue* app_infos = new base::ListValue;
     for (extensions::ExtensionSet::const_iterator it = protecting_apps->begin();
          it != protecting_apps->end(); ++it) {
-      base::DictionaryValue* app_info = new base::DictionaryValue();
+      std::unique_ptr<base::DictionaryValue> app_info(
+          new base::DictionaryValue());
       app_info->SetString(kKeyId, (*it)->id());
       app_info->SetString(kKeyName, (*it)->name());
-      app_infos->Append(app_info);
+      app_infos->Append(std::move(app_info));
     }
     dict->Set(kKeyAppsProtectingThis, app_infos);
   }
 #endif
 
   return true;
 }
 
 void CookiesTreeModelUtil::GetChildNodeList(const CookieTreeNode* parent,
                                             int start,
@@ skipping 24 matching lines @@
     child = id_map_.Lookup(node_id);
     child_index = parent->GetIndexOf(child);
     if (child_index == -1)
       break;
 
     parent = child;
   }
 
   return child_index >= 0 ? child : NULL;
 }