Rewrite simple uses of base::ListValue::Append(base::Value*) on CrOS.

chrome/browser/ui/webui/chromeos/login/network_dropdown.cc

Index: chrome/browser/ui/webui/chromeos/login/network_dropdown.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/network_dropdown.cc b/chrome/browser/ui/webui/chromeos/login/network_dropdown.cc
index 96091bc2bfab4ecb40f36267f6191533570e90b2..cac8f8b30d50801721ed09dc94561894af42949c 100644
--- a/chrome/browser/ui/webui/chromeos/login/network_dropdown.cc
+++ b/chrome/browser/ui/webui/chromeos/login/network_dropdown.cc
@@ -4,7 +4,9 @@
 
 #include "chrome/browser/ui/webui/chromeos/login/network_dropdown.h"
 
+#include <memory>
 #include <string>
+#include <utility>
 
 #include "base/macros.h"
 #include "base/strings/string_util.h"
@@ -87,7 +89,7 @@ base::ListValue* NetworkMenuWebUI::ConvertMenuModel(ui::MenuModel* model) {
       id = -2;
     else
       id = model->GetCommandIdAt(i);
-    base::DictionaryValue* item = new base::DictionaryValue();
+    std::unique_ptr<base::DictionaryValue> item(new base::DictionaryValue());
     item->SetInteger("id", id);
     base::string16 label = model->GetLabelAt(i);
     base::ReplaceSubstringsAfterOffset(&label, 0, base::ASCIIToUTF16("&&"),
@@ -108,7 +110,7 @@ base::ListValue* NetworkMenuWebUI::ConvertMenuModel(ui::MenuModel* model) {
     }
     if (type == ui::MenuModel::TYPE_SUBMENU)
       item->Set("sub", ConvertMenuModel(model->GetSubmenuModelAt(i)));
-    list->Append(item);
+    list->Append(std::move(item));
   }
   return list;
 }