| // Copyright 2015 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. |
| |
| #ifndef COMPONENTS_SCHEDULER_CHILD_SCHEDULER_TQM_DELEGATE_H_ |
| #define COMPONENTS_SCHEDULER_CHILD_SCHEDULER_TQM_DELEGATE_H_ |
| |
| #include "base/macros.h" |
| #include "base/message_loop/message_loop.h" |
| #include "components/scheduler/base/task_queue_manager_delegate.h" |
| #include "components/scheduler/scheduler_export.h" |
| |
| namespace scheduler { |
| |
| class SCHEDULER_EXPORT SchedulerTqmDelegate : public TaskQueueManagerDelegate { |
| public: |
| SchedulerTqmDelegate() {} |
| |
| // If the underlying task runner supports the concept of a default task |
| // runner, the delegate should implement this function to redirect that task |
| // runner to the scheduler. |
| virtual void SetDefaultTaskRunner( |
| scoped_refptr<base::SingleThreadTaskRunner> task_runner) = 0; |
| |
| // Similarly this method can be used to restore the original task runner when |
| // the scheduler no longer wants to intercept tasks. |
| virtual void RestoreDefaultTaskRunner() = 0; |
| |
| protected: |
| ~SchedulerTqmDelegate() override {} |
| |
| DISALLOW_COPY_AND_ASSIGN(SchedulerTqmDelegate); |
| }; |
| |
| } // namespace scheduler |
| |
| #endif // COMPONENTS_SCHEDULER_CHILD_SCHEDULER_TQM_DELEGATE_H_ |