1 files changed, 40 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/platform/scheduler/base/sequenced_task_source.h b/chromium/third_party/blink/renderer/platform/scheduler/base/sequenced_task_source.h
new file mode 100644
index 00000000000..323e0868988
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+++ b/chromium/third_party/blink/renderer/platform/scheduler/base/sequenced_task_source.h
@@ -0,0 +1,40 @@
+// Copyright 2017 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_SEQUENCED_TASK_SOURCE_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_SEQUENCED_TASK_SOURCE_H_
+
+#include "base/optional.h"
+#include "base/pending_task.h"
+
+namespace blink {
+namespace scheduler {
+class LazyNow;
+
+namespace internal {
+
+// This is temporary interface for ThreadController to be able to run tasks
+// from TaskQueueManager.
+class SequencedTaskSource {
+ public:
+  // TODO(alexclarke): Move this enum elsewhere.
+  enum class WorkType { kImmediate, kDelayed };
+
+  // Take a next task to run from a sequence.
+  // TODO(altimin): Do not pass |work_type| here.
+  virtual base::Optional<base::PendingTask> TakeTask() = 0;
+
+  // Notify a sequence that a taken task has been completed.
+  virtual void DidRunTask() = 0;
+
+  // Returns the delay till the next task, or base::TimeDelta::Max() if there
+  // isn't one.
+  virtual base::TimeDelta DelayTillNextTask(LazyNow* lazy_now) = 0;
+};
+
+}  // namespace internal
+}  // namespace scheduler
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_BASE_SEQUENCED_TASK_SOURCE_H_