Remove use of deprecated base::ListValue::Append(Value*) overload in //chrome/browser/chromeos

chrome/browser/chromeos/settings/cros_settings.cc

Index: chrome/browser/chromeos/settings/cros_settings.cc
diff --git a/chrome/browser/chromeos/settings/cros_settings.cc b/chrome/browser/chromeos/settings/cros_settings.cc
index c0d7f889b058146cd01071f85ccf271ac4c2fd22..f0a8e715027f0b9ad258f40e734e3915eb4a4650 100644
--- a/chrome/browser/chromeos/settings/cros_settings.cc
+++ b/chrome/browser/chromeos/settings/cros_settings.cc
@@ -152,7 +152,8 @@ void CrosSettings::AppendToList(const std::string& path,
   const base::Value* old_value = GetPref(path);
   std::unique_ptr<base::Value> new_value(old_value ? old_value->DeepCopy()
                                                    : new base::ListValue());
-  static_cast<base::ListValue*>(new_value.get())->Append(value->DeepCopy());
+  static_cast<base::ListValue*>(new_value.get())
+      ->Append(value->CreateDeepCopy());
   Set(path, *new_value);
 }