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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // A Predictor object is instantiated once in the browser process, and manages | 5 // A Predictor object is instantiated once in the browser process, and manages |
| 6 // both preresolution of hostnames, as well as TCP/IP preconnection to expected | 6 // both preresolution of hostnames, as well as TCP/IP preconnection to expected |
| 7 // subresources. | 7 // subresources. |
| 8 // Most hostname lists are provided by the renderer processes, and include URLs | 8 // Most hostname lists are provided by the renderer processes, and include URLs |
| 9 // that *might* be used in the near future by the browsing user. One goal of | 9 // that *might* be used in the near future by the browsing user. One goal of |
| 10 // this class is to cause the underlying DNS structure to lookup a hostname | 10 // this class is to cause the underlying DNS structure to lookup a hostname |
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| 103 // be performed. Host lookups will be issued through |host_resolver|. | 103 // be performed. Host lookups will be issued through |host_resolver|. |
| 104 explicit Predictor(bool preconnect_enabled); | 104 explicit Predictor(bool preconnect_enabled); |
| 105 | 105 |
| 106 virtual ~Predictor(); | 106 virtual ~Predictor(); |
| 107 | 107 |
| 108 // This function is used to create a predictor. For testing, we can create | 108 // This function is used to create a predictor. For testing, we can create |
| 109 // a version which does a simpler shutdown. | 109 // a version which does a simpler shutdown. |
| 110 static Predictor* CreatePredictor(bool preconnect_enabled, | 110 static Predictor* CreatePredictor(bool preconnect_enabled, |
| 111 bool simple_shutdown); | 111 bool simple_shutdown); |
| 112 | 112 |
| 113 static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry); | 113 static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry); |
| 114 | 114 |
| 115 // ------------- Start UI thread methods. | 115 // ------------- Start UI thread methods. |
| 116 | 116 |
| 117 virtual void InitNetworkPredictor(PrefService* user_prefs, | 117 virtual void InitNetworkPredictor(PrefService* user_prefs, |
| 118 PrefService* local_state, | 118 PrefService* local_state, |
| 119 IOThread* io_thread, | 119 IOThread* io_thread, |
| 120 net::URLRequestContextGetter* getter); | 120 net::URLRequestContextGetter* getter); |
| 121 | 121 |
| 122 // The Omnibox has proposed a given url to the user, and if it is a search | 122 // The Omnibox has proposed a given url to the user, and if it is a search |
| 123 // URL, then it also indicates that this is preconnectable (i.e., we could | 123 // URL, then it also indicates that this is preconnectable (i.e., we could |
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| 539 PrefService* user_prefs, | 539 PrefService* user_prefs, |
| 540 PrefService* local_state, | 540 PrefService* local_state, |
| 541 IOThread* io_thread, | 541 IOThread* io_thread, |
| 542 net::URLRequestContextGetter* getter) OVERRIDE; | 542 net::URLRequestContextGetter* getter) OVERRIDE; |
| 543 virtual void ShutdownOnUIThread(PrefService* user_prefs) OVERRIDE; | 543 virtual void ShutdownOnUIThread(PrefService* user_prefs) OVERRIDE; |
| 544 }; | 544 }; |
| 545 | 545 |
| 546 } // namespace chrome_browser_net | 546 } // namespace chrome_browser_net |
| 547 | 547 |
| 548 #endif // CHROME_BROWSER_NET_PREDICTOR_H_ | 548 #endif // CHROME_BROWSER_NET_PREDICTOR_H_ |
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