Remove base::Value::CreateNullValue

chrome/browser/ui/webui/options/cookies_view_handler.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/options/cookies_view_handler.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browsing_data/browsing_data_appcache_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_cache_storage_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_channel_id_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_cookie_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_database_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_file_system_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_flash_lso_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_indexed_db_helper.h"
@@ skipping 129 matching lines @@
 
   CookiesTreeModel* tree_model = static_cast<CookiesTreeModel*>(model);
   CookieTreeNode* parent_node = tree_model->AsNode(parent);
 
   std::unique_ptr<base::ListValue> children(new base::ListValue);
   model_util_->GetChildNodeList(
       parent_node, start, count, /*include_quota_nodes=*/true, children.get());
 
   base::ListValue args;
   if (parent == tree_model->GetRoot())
-    args.Append(base::Value::CreateNullValue());
+    args.Append(base::MakeUnique<base::Value>());
   else
     args.AppendString(model_util_->GetTreeNodeId(parent_node));
   args.AppendInteger(start);
   args.Append(std::move(children));
   web_ui()->CallJavascriptFunctionUnsafe("CookiesView.onTreeItemAdded", args);
 }
 
 void CookiesViewHandler::TreeNodesRemoved(ui::TreeModel* model,
                                           ui::TreeModelNode* parent,
                                           int start,
                                           int count) {
   // Skip if there is a batch update in progress.
   if (batch_update_)
     return;
 
   CookiesTreeModel* tree_model = static_cast<CookiesTreeModel*>(model);
 
   base::ListValue args;
   if (parent == tree_model->GetRoot())
-    args.Append(base::Value::CreateNullValue());
+    args.Append(base::MakeUnique<base::Value>());
   else
     args.AppendString(model_util_->GetTreeNodeId(tree_model->AsNode(parent)));
   args.AppendInteger(start);
   args.AppendInteger(count);
   web_ui()->CallJavascriptFunctionUnsafe("CookiesView.onTreeItemRemoved", args);
 }
 
 void CookiesViewHandler::TreeModelBeginBatch(CookiesTreeModel* model) {
   DCHECK(!batch_update_);  // There should be no nested batch begin.
   batch_update_ = true;
@@ skipping 79 matching lines @@
     SendChildren(node);
 }
 
 void CookiesViewHandler::SendChildren(const CookieTreeNode* parent) {
   std::unique_ptr<base::ListValue> children(new base::ListValue);
   model_util_->GetChildNodeList(parent,  /*start=*/0, parent->child_count(),
       /*include_quota_nodes=*/true, children.get());
 
   base::ListValue args;
   if (parent == cookies_tree_model_->GetRoot())
-    args.Append(base::Value::CreateNullValue());
+    args.Append(base::MakeUnique<base::Value>());
   else
     args.AppendString(model_util_->GetTreeNodeId(parent));
   args.Append(std::move(children));
 
   web_ui()->CallJavascriptFunctionUnsafe("CookiesView.loadChildren", args);
 }
 
 void CookiesViewHandler::ReloadCookies(const base::ListValue* args) {
   cookies_tree_model_.reset();
 
   EnsureCookiesTreeModelCreated();
 }
 
 }  // namespace options