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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_RENDERER_RENDERER_SCHEDULER_H_ | 5 #ifndef COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ |
6 #define COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ | 6 #define COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ |
7 | 7 |
8 #include "base/message_loop/message_loop.h" | 8 #include "base/message_loop/message_loop.h" |
9 #include "components/scheduler/child/child_scheduler.h" | 9 #include "components/scheduler/child/child_scheduler.h" |
10 #include "components/scheduler/child/single_thread_idle_task_runner.h" | 10 #include "components/scheduler/child/single_thread_idle_task_runner.h" |
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137 virtual void SuspendTimerQueue() = 0; | 137 virtual void SuspendTimerQueue() = 0; |
138 | 138 |
139 // Decrements the timer queue suspension count and re-enables the timer queue | 139 // Decrements the timer queue suspension count and re-enables the timer queue |
140 // if the suspension count is zero and the current schduler policy allows it. | 140 // if the suspension count is zero and the current schduler policy allows it. |
141 virtual void ResumeTimerQueue() = 0; | 141 virtual void ResumeTimerQueue() = 0; |
142 | 142 |
143 // Sets whether to allow suspension of timers after the backgrounded signal is | 143 // Sets whether to allow suspension of timers after the backgrounded signal is |
144 // received via OnRendererBackgrounded. Defaults to disabled. | 144 // received via OnRendererBackgrounded. Defaults to disabled. |
145 virtual void SetTimerQueueSuspensionWhenBackgroundedEnabled(bool enabled) = 0; | 145 virtual void SetTimerQueueSuspensionWhenBackgroundedEnabled(bool enabled) = 0; |
146 | 146 |
| 147 // Returns a double which is the number of seconds since epoch (Jan 1, 1970). |
| 148 virtual double CurrentTimeSeconds() const = 0; |
| 149 |
| 150 // Returns a microsecond resolution platform dependant time source. |
| 151 virtual double MonotonicallyIncreasingTimeSeconds() const = 0; |
| 152 |
147 protected: | 153 protected: |
148 RendererScheduler(); | 154 RendererScheduler(); |
149 DISALLOW_COPY_AND_ASSIGN(RendererScheduler); | 155 DISALLOW_COPY_AND_ASSIGN(RendererScheduler); |
150 }; | 156 }; |
151 | 157 |
152 } // namespace scheduler | 158 } // namespace scheduler |
153 | 159 |
154 #endif // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ | 160 #endif // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_ |
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