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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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42 BLINK_PLATFORM_EXPORT static void initialize(WebPrerenderingSupport*); | 42 BLINK_PLATFORM_EXPORT static void initialize(WebPrerenderingSupport*); |
43 BLINK_PLATFORM_EXPORT static void shutdown(); | 43 BLINK_PLATFORM_EXPORT static void shutdown(); |
44 BLINK_PLATFORM_EXPORT static WebPrerenderingSupport* current(); | 44 BLINK_PLATFORM_EXPORT static WebPrerenderingSupport* current(); |
45 | 45 |
46 // A prerender link element is added when it is inserted into a document. | 46 // A prerender link element is added when it is inserted into a document. |
47 virtual void add(const WebPrerender&) = 0; | 47 virtual void add(const WebPrerender&) = 0; |
48 | 48 |
49 // A prerender is canceled when it is removed from a document. | 49 // A prerender is canceled when it is removed from a document. |
50 virtual void cancel(const WebPrerender&) = 0; | 50 virtual void cancel(const WebPrerender&) = 0; |
51 | 51 |
52 // A prerender is abandoned when it's navigated away from or suspended in the
page cache. This | 52 // A prerender is abandoned when it's navigated away from or suspended in the |
53 // is a weaker signal than cancel(), since the launcher hasn't indicated that
the prerender isn't | 53 // page cache. This is a weaker signal than cancel(), since the launcher |
54 // wanted, and we may end up using it after, for instance, a short redirect ch
ain. | 54 // hasn't indicated that the prerender isn't wanted, and we may end up using |
| 55 // it after, for instance, a short redirect chain. |
55 virtual void abandon(const WebPrerender&) = 0; | 56 virtual void abandon(const WebPrerender&) = 0; |
56 | 57 |
57 protected: | 58 protected: |
58 WebPrerenderingSupport() {} | 59 WebPrerenderingSupport() {} |
59 virtual ~WebPrerenderingSupport() {} | 60 virtual ~WebPrerenderingSupport() {} |
60 | 61 |
61 private: | 62 private: |
62 static WebPrerenderingSupport* s_platform; | 63 static WebPrerenderingSupport* s_platform; |
63 }; | 64 }; |
64 | 65 |
65 } // namespace blink | 66 } // namespace blink |
66 | 67 |
67 #endif // WebPrerenderingSupport_h | 68 #endif // WebPrerenderingSupport_h |
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