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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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| 582 // orginial hostname. | 582 // orginial hostname. |
| 583 Referrers referrers_; | 583 Referrers referrers_; |
| 584 | 584 |
| 585 // List of URLs in referrers_ currently being trimmed (scaled down to | 585 // List of URLs in referrers_ currently being trimmed (scaled down to |
| 586 // eventually be aged out of use). | 586 // eventually be aged out of use). |
| 587 std::vector<GURL> urls_being_trimmed_; | 587 std::vector<GURL> urls_being_trimmed_; |
| 588 | 588 |
| 589 // A time after which we need to do more trimming of referrers. | 589 // A time after which we need to do more trimming of referrers. |
| 590 base::TimeTicks next_trim_time_; | 590 base::TimeTicks next_trim_time_; |
| 591 | 591 |
| 592 scoped_ptr<base::WeakPtrFactory<Predictor> > weak_factory_; | |
| 593 | |
| 594 scoped_ptr<ProxyAdvisor> proxy_advisor_; | 592 scoped_ptr<ProxyAdvisor> proxy_advisor_; |
| 595 | 593 |
| 596 // An observer for testing. | 594 // An observer for testing. |
| 597 PredictorObserver* observer_; | 595 PredictorObserver* observer_; |
| 598 | 596 |
| 597 scoped_ptr<base::WeakPtrFactory<Predictor> > weak_factory_; |
| 598 |
| 599 DISALLOW_COPY_AND_ASSIGN(Predictor); | 599 DISALLOW_COPY_AND_ASSIGN(Predictor); |
| 600 }; | 600 }; |
| 601 | 601 |
| 602 // This version of the predictor is used for testing. | 602 // This version of the predictor is used for testing. |
| 603 class SimplePredictor : public Predictor { | 603 class SimplePredictor : public Predictor { |
| 604 public: | 604 public: |
| 605 explicit SimplePredictor(bool preconnect_enabled, bool predictor_enabled) | 605 explicit SimplePredictor(bool preconnect_enabled, bool predictor_enabled) |
| 606 : Predictor(preconnect_enabled, predictor_enabled) {} | 606 : Predictor(preconnect_enabled, predictor_enabled) {} |
| 607 virtual ~SimplePredictor() {} | 607 virtual ~SimplePredictor() {} |
| 608 virtual void InitNetworkPredictor( | 608 virtual void InitNetworkPredictor( |
| 609 PrefService* user_prefs, | 609 PrefService* user_prefs, |
| 610 PrefService* local_state, | 610 PrefService* local_state, |
| 611 IOThread* io_thread, | 611 IOThread* io_thread, |
| 612 net::URLRequestContextGetter* getter, | 612 net::URLRequestContextGetter* getter, |
| 613 ProfileIOData* profile_io_data) OVERRIDE; | 613 ProfileIOData* profile_io_data) OVERRIDE; |
| 614 virtual void ShutdownOnUIThread() OVERRIDE; | 614 virtual void ShutdownOnUIThread() OVERRIDE; |
| 615 private: | 615 private: |
| 616 // These member functions return True for unittests. | 616 // These member functions return True for unittests. |
| 617 virtual bool CanPrefetchAndPrerender() const OVERRIDE; | 617 virtual bool CanPrefetchAndPrerender() const OVERRIDE; |
| 618 virtual bool CanPreresolveAndPreconnect() const OVERRIDE; | 618 virtual bool CanPreresolveAndPreconnect() const OVERRIDE; |
| 619 }; | 619 }; |
| 620 | 620 |
| 621 } // namespace chrome_browser_net | 621 } // namespace chrome_browser_net |
| 622 | 622 |
| 623 #endif // CHROME_BROWSER_NET_PREDICTOR_H_ | 623 #endif // CHROME_BROWSER_NET_PREDICTOR_H_ |
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