| // 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_WEB_TASK_RUNNER_H_ |
| #define COMPONENTS_SCHEDULER_CHILD_WEB_TASK_RUNNER_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/time/time.h" |
| #include "components/scheduler/scheduler_export.h" |
| #include "third_party/WebKit/public/platform/WebTaskRunner.h" |
| |
| namespace scheduler { |
| class TaskQueue; |
| |
| class SCHEDULER_EXPORT WebTaskRunnerImpl : public blink::WebTaskRunner { |
| public: |
| explicit WebTaskRunnerImpl(scoped_refptr<TaskQueue> task_queue); |
| |
| ~WebTaskRunnerImpl() override; |
| |
| // blink::WebTaskRunner implementation: |
| void postTask(const blink::WebTraceLocation& web_location, |
| blink::WebTaskRunner::Task* task) override; |
| void postDelayedTask(const blink::WebTraceLocation& web_location, |
| blink::WebTaskRunner::Task* task, |
| double delayMs) override; |
| double virtualTimeSeconds() const override; |
| double monotonicallyIncreasingVirtualTimeSeconds() const override; |
| blink::WebTaskRunner* clone() override; |
| |
| // blink::WebTaskRunner::Task should be wrapped by base::Passed() when |
| // used with base::Bind(). See https://crbug.com/551356. |
| // runTask() is a helper to call blink::WebTaskRunner::Task::run from |
| // std::unique_ptr<blink::WebTaskRunner::Task>. |
| // runTask() is placed here because std::unique_ptr<> cannot be used from |
| // Blink. |
| static void runTask(std::unique_ptr<blink::WebTaskRunner::Task>); |
| |
| private: |
| base::TimeTicks Now() const; |
| |
| scoped_refptr<TaskQueue> task_queue_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WebTaskRunnerImpl); |
| }; |
| |
| } // namespace scheduler |
| |
| #endif // COMPONENTS_SCHEDULER_CHILD_WEB_TASK_RUNNER_H_ |