| // |
| // Copyright 2021 Google, Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at: |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #pragma once |
| |
| #include <base/observer_list.h> |
| |
| namespace btbase { |
| #if defined(BASE_VER) && BASE_VER > 780000 |
| |
| // Checked Observers aren't supported in the older libchrome so use unchecked |
| // ones instead to preserve behavior. |
| template <class ObserverType> |
| class AbstractObserverList |
| : public base::ObserverList<ObserverType>::Unchecked {}; |
| |
| #else |
| |
| template <class ObserverType> |
| class AbstractObserverList : public base::ObserverList<ObserverType> {}; |
| |
| #endif |
| } // namespace btbase |
