| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef IOS_WEB_PUBLIC_THREAD_WEB_TASK_TRAITS_H_ |
| #define IOS_WEB_PUBLIC_THREAD_WEB_TASK_TRAITS_H_ |
| |
| #include "base/task/task_traits.h" |
| #include "ios/web/public/thread/web_thread.h" |
| |
| namespace web { |
| |
| class WebTaskTraits : public base::TaskTraits { |
| public: |
| struct ValidTrait : public base::TaskTraits::ValidTrait { |
| // TODO(crbug.com/40217644): iOS never supported TaskPriority, but some |
| // callers are providing it... Add support? |
| ValidTrait(base::TaskPriority); |
| |
| // TODO(crbug.com/40108370): These traits are meaningless on WebThreads but |
| // some callers of post_task.h had been using them in conjunction with |
| // WebThread::ID traits. Remove such usage post-migration. |
| ValidTrait(base::MayBlock); |
| ValidTrait(base::TaskShutdownBehavior); |
| }; |
| |
| template <class... ArgTypes> |
| requires base::trait_helpers::AreValidTraits<ValidTrait, ArgTypes...> |
| constexpr WebTaskTraits(ArgTypes... args) : base::TaskTraits(args...) {} |
| }; |
| |
| } // namespace web |
| |
| #endif // IOS_WEB_PUBLIC_THREAD_WEB_TASK_TRAITS_H_ |
