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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 WebFrameScheduler_h | 5 #ifndef WebFrameScheduler_h |
6 #define WebFrameScheduler_h | 6 #define WebFrameScheduler_h |
7 | 7 |
8 #include "WebCommon.h" | 8 #include "WebCommon.h" |
9 | 9 |
10 #include <string> | 10 #include <string> |
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25 // The scheduler may throttle tasks associated with pages that are not visib
le. | 25 // The scheduler may throttle tasks associated with pages that are not visib
le. |
26 virtual void setPageVisible(bool) { } | 26 virtual void setPageVisible(bool) { } |
27 | 27 |
28 // Returns the WebTaskRunner for loading tasks. | 28 // Returns the WebTaskRunner for loading tasks. |
29 // WebFrameScheduler owns the returned WebTaskRunner. | 29 // WebFrameScheduler owns the returned WebTaskRunner. |
30 virtual WebTaskRunner* loadingTaskRunner() { return nullptr; } | 30 virtual WebTaskRunner* loadingTaskRunner() { return nullptr; } |
31 | 31 |
32 // Returns the WebTaskRunner for timer tasks. | 32 // Returns the WebTaskRunner for timer tasks. |
33 // WebFrameScheduler owns the returned WebTaskRunner. | 33 // WebFrameScheduler owns the returned WebTaskRunner. |
34 virtual WebTaskRunner* timerTaskRunner() { return nullptr; } | 34 virtual WebTaskRunner* timerTaskRunner() { return nullptr; } |
| 35 |
| 36 // Returns the WebTaskRunner for tasks which should never get throttled. |
| 37 // This is generally used for executing internal browser tasks which should |
| 38 // never be throttled. Ideally only tasks whose performance characteristics |
| 39 // are known should be posted to this task runner; for example user |
| 40 // JavaScript is discouraged. WebFrameScheduler owns the returned |
| 41 // WebTaskRunner. |
| 42 virtual WebTaskRunner* unthrottledTaskRunner() { return nullptr; } |
35 }; | 43 }; |
36 | 44 |
37 } // namespace blink | 45 } // namespace blink |
38 | 46 |
39 #endif // WebFrameScheduler_h | 47 #endif // WebFrameScheduler_h |
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