Index: components/scheduler/base/task_queue_manager_delegate.h |
diff --git a/components/scheduler/base/task_queue_manager_delegate.h b/components/scheduler/base/task_queue_manager_delegate.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a93110e8ec17efcb3e7023b1a1c1de8435dea90c |
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+++ b/components/scheduler/base/task_queue_manager_delegate.h |
@@ -0,0 +1,40 @@ |
+// 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_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
+#define COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
+ |
+#include "base/callback.h" |
+#include "base/macros.h" |
+#include "base/message_loop/message_loop.h" |
+#include "base/time/tick_clock.h" |
+#include "components/scheduler/scheduler_export.h" |
+ |
+namespace scheduler { |
+ |
+class SCHEDULER_EXPORT TaskQueueManagerDelegate |
+ : public base::SingleThreadTaskRunner, |
+ public base::TickClock { |
+ public: |
+ TaskQueueManagerDelegate() {} |
+ |
+ // Returns true if the task runner is nested (i.e., running a run loop within |
+ // a nested task). |
+ virtual bool IsNested() const = 0; |
+ |
+ // Used by the TaskQueueManager to tell us there is no more non-delayed work |
+ // to do. |
+ // TODO(alexclarke): Try and find a better interface that avoids the need for |
+ // this. |
+ virtual void OnNoMoreImmediateWork() = 0; |
+ |
+ protected: |
+ ~TaskQueueManagerDelegate() override {} |
+ |
+ DISALLOW_COPY_AND_ASSIGN(TaskQueueManagerDelegate); |
+}; |
+ |
+} // namespace scheduler |
+ |
+#endif // COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |