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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ | 5 #ifndef COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
6 #define COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ | 6 #define COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/macros.h" | 9 #include "base/macros.h" |
10 #include "base/message_loop/message_loop.h" | 10 #include "base/message_loop/message_loop.h" |
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22 // Returns true if the task runner is nested (i.e., running a run loop within | 22 // Returns true if the task runner is nested (i.e., running a run loop within |
23 // a nested task). | 23 // a nested task). |
24 virtual bool IsNested() const = 0; | 24 virtual bool IsNested() const = 0; |
25 | 25 |
26 // Used by the TaskQueueManager to tell us there is no more non-delayed work | 26 // Used by the TaskQueueManager to tell us there is no more non-delayed work |
27 // to do. | 27 // to do. |
28 // TODO(alexclarke): Try and find a better interface that avoids the need for | 28 // TODO(alexclarke): Try and find a better interface that avoids the need for |
29 // this. | 29 // this. |
30 virtual void OnNoMoreImmediateWork() = 0; | 30 virtual void OnNoMoreImmediateWork() = 0; |
31 | 31 |
| 32 // Returns the time as a double which is the number of seconds since epoch |
| 33 // (Jan 1, 1970). Blink uses this format to represent time. |
| 34 virtual double CurrentTimeSeconds() const = 0; |
| 35 |
32 protected: | 36 protected: |
33 ~TaskQueueManagerDelegate() override {} | 37 ~TaskQueueManagerDelegate() override {} |
34 | 38 |
35 DISALLOW_COPY_AND_ASSIGN(TaskQueueManagerDelegate); | 39 DISALLOW_COPY_AND_ASSIGN(TaskQueueManagerDelegate); |
36 }; | 40 }; |
37 | 41 |
38 } // namespace scheduler | 42 } // namespace scheduler |
39 | 43 |
40 #endif // COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ | 44 #endif // COMPONENTS_SCHEDULER_BASE_TASK_QUEUE_MANAGER_DELEGATE_H_ |
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