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Side by Side Diff: chrome/browser/net/predictor.h

Issue 2337233006: CL for src perf tryjob to run page_cycler_v2.intl_ko_th_vi benchmark on all-android platform(s)
Patch Set: Created 4 years, 3 months ago
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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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299 bool PredictorEnabled() const; 299 bool PredictorEnabled() const;
300 300
301 // Used only for testing. Overrides command line flag to disable the 301 // Used only for testing. Overrides command line flag to disable the
302 // predictor, which is added in the browser test fixture. 302 // predictor, which is added in the browser test fixture.
303 void SetPredictorEnabledForTest(bool predictor_enabled); 303 void SetPredictorEnabledForTest(bool predictor_enabled);
304 304
305 net::URLRequestContextGetter* url_request_context_getter_for_test() { 305 net::URLRequestContextGetter* url_request_context_getter_for_test() {
306 return url_request_context_getter_.get(); 306 return url_request_context_getter_.get();
307 } 307 }
308 308
309 TimedCache* timed_cache() { return timed_cache_.get(); }
310
311 private: 309 private:
312 FRIEND_TEST_ALL_PREFIXES(PredictorTest, PriorityQueuePushPopTest); 310 FRIEND_TEST_ALL_PREFIXES(PredictorTest, PriorityQueuePushPopTest);
313 FRIEND_TEST_ALL_PREFIXES(PredictorTest, PriorityQueueReorderTest); 311 FRIEND_TEST_ALL_PREFIXES(PredictorTest, PriorityQueueReorderTest);
314 FRIEND_TEST_ALL_PREFIXES(PredictorTest, ReferrerSerializationTrimTest); 312 FRIEND_TEST_ALL_PREFIXES(PredictorTest, ReferrerSerializationTrimTest);
315 FRIEND_TEST_ALL_PREFIXES(PredictorTest, SingleLookupTestWithDisabledAdvisor); 313 FRIEND_TEST_ALL_PREFIXES(PredictorTest, SingleLookupTestWithDisabledAdvisor);
316 FRIEND_TEST_ALL_PREFIXES(PredictorTest, SingleLookupTestWithEnabledAdvisor); 314 FRIEND_TEST_ALL_PREFIXES(PredictorTest, SingleLookupTestWithEnabledAdvisor);
317 FRIEND_TEST_ALL_PREFIXES(PredictorTest, TestSimplePreconnectAdvisor); 315 FRIEND_TEST_ALL_PREFIXES(PredictorTest, TestSimplePreconnectAdvisor);
318 FRIEND_TEST_ALL_PREFIXES(PredictorTest, NoProxyService); 316 FRIEND_TEST_ALL_PREFIXES(PredictorTest, NoProxyService);
319 FRIEND_TEST_ALL_PREFIXES(PredictorTest, ProxyDefinitelyEnabled); 317 FRIEND_TEST_ALL_PREFIXES(PredictorTest, ProxyDefinitelyEnabled);
320 FRIEND_TEST_ALL_PREFIXES(PredictorTest, ProxyDefinitelyNotEnabled); 318 FRIEND_TEST_ALL_PREFIXES(PredictorTest, ProxyDefinitelyNotEnabled);
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520 518
521 // For each URL that we might navigate to (that we've "learned about") 519 // For each URL that we might navigate to (that we've "learned about")
522 // we have a Referrer list. Each Referrer list has all hostnames we might 520 // we have a Referrer list. Each Referrer list has all hostnames we might
523 // need to pre-resolve or pre-connect to when there is a navigation to the 521 // need to pre-resolve or pre-connect to when there is a navigation to the
524 // orginial hostname. 522 // orginial hostname.
525 Referrers referrers_; 523 Referrers referrers_;
526 524
527 // An observer for testing. 525 // An observer for testing.
528 PredictorObserver* observer_; 526 PredictorObserver* observer_;
529 527
530 std::unique_ptr<TimedCache> timed_cache_;
531
532 // TODO(csharrison): It is not great that two weak pointer factories are 528 // TODO(csharrison): It is not great that two weak pointer factories are
533 // needed in this class. Let's split it into two classes that live on each 529 // needed in this class. Let's split it into two classes that live on each
534 // thread. 530 // thread.
535 // 531 //
536 // Weak factory for weak pointers that should be dereferenced on the IO 532 // Weak factory for weak pointers that should be dereferenced on the IO
537 // thread. 533 // thread.
538 std::unique_ptr<base::WeakPtrFactory<Predictor>> io_weak_factory_; 534 std::unique_ptr<base::WeakPtrFactory<Predictor>> io_weak_factory_;
539 535
540 // Weak factory for weak pointers that should be dereferenced on the UI 536 // Weak factory for weak pointers that should be dereferenced on the UI
541 // thread. 537 // thread.
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561 557
562 private: 558 private:
563 // These member functions return True for unittests. 559 // These member functions return True for unittests.
564 bool CanPrefetchAndPrerender() const override; 560 bool CanPrefetchAndPrerender() const override;
565 bool CanPreresolveAndPreconnect() const override; 561 bool CanPreresolveAndPreconnect() const override;
566 }; 562 };
567 563
568 } // namespace chrome_browser_net 564 } // namespace chrome_browser_net
569 565
570 #endif // CHROME_BROWSER_NET_PREDICTOR_H_ 566 #endif // CHROME_BROWSER_NET_PREDICTOR_H_
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