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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> |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 class WebSecurityOrigin; | 14 class WebSecurityOrigin; |
15 class WebTaskRunner; | 15 class WebTaskRunner; |
16 | 16 |
17 class BLINK_PLATFORM_EXPORT WebFrameScheduler { | 17 class BLINK_PLATFORM_EXPORT WebFrameScheduler { |
18 public: | 18 public: |
19 virtual ~WebFrameScheduler() { } | 19 virtual ~WebFrameScheduler() { } |
20 | 20 |
21 // The scheduler may throttle tasks associated with offscreen frames. | 21 // The scheduler may throttle tasks associated with offscreen frames. |
22 virtual void setFrameVisible(bool) { } | 22 virtual void setFrameVisible(bool) { } |
23 | 23 |
24 // Tells the scheduler that the page this frame belongs to is not visible. | 24 // Tells the scheduler that the page this frame belongs to is not visible. |
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 // Set whether this frame is cross origin w.r.t. the top level frame. Cross |
| 29 // origin frames may use a different scheduling policy from same origin |
| 30 // frames. |
| 31 virtual void setCrossOrigin(bool) {} |
| 32 |
28 // Returns the WebTaskRunner for loading tasks. | 33 // Returns the WebTaskRunner for loading tasks. |
29 // WebFrameScheduler owns the returned WebTaskRunner. | 34 // WebFrameScheduler owns the returned WebTaskRunner. |
30 virtual WebTaskRunner* loadingTaskRunner() { return nullptr; } | 35 virtual WebTaskRunner* loadingTaskRunner() { return nullptr; } |
31 | 36 |
32 // Returns the WebTaskRunner for timer tasks. | 37 // Returns the WebTaskRunner for timer tasks. |
33 // WebFrameScheduler owns the returned WebTaskRunner. | 38 // WebFrameScheduler owns the returned WebTaskRunner. |
34 virtual WebTaskRunner* timerTaskRunner() { return nullptr; } | 39 virtual WebTaskRunner* timerTaskRunner() { return nullptr; } |
35 }; | 40 }; |
36 | 41 |
37 } // namespace blink | 42 } // namespace blink |
38 | 43 |
39 #endif // WebFrameScheduler_h | 44 #endif // WebFrameScheduler_h |
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