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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #include "chrome/browser/net/connect_interceptor.h" | 5 #include "chrome/browser/net/connect_interceptor.h" |
| 6 | 6 |
| 7 #include "chrome/browser/net/predictor_api.h" | 7 #include "chrome/browser/net/predictor_api.h" |
| 8 #include "net/base/load_flags.h" | 8 #include "net/base/load_flags.h" |
| 9 | 9 |
| 10 namespace chrome_browser_net { | 10 namespace chrome_browser_net { |
| 11 | 11 |
| 12 // We don't bother learning to preconnect via a GET if the original URL | 12 // We don't bother learning to preconnect via a GET if the original URL |
| 13 // navigation was so long ago, that a preconnection would have been dropped | 13 // navigation was so long ago, that a preconnection would have been dropped |
| 14 // anyway. We believe most servers will drop the connection in 10 seconds, so | 14 // anyway. We believe most servers will drop the connection in 10 seconds, so |
| 15 // we currently estimate this time-till-drop at 10 seconds. | 15 // we currently estimate this time-till-drop at 10 seconds. |
| 16 // TODO(jar): We should do a persistent field trial to validate/optimize this. | 16 // TODO(jar): We should do a persistent field trial to validate/optimize this. |
| 17 static const int kMaxUnusedSocketLifetimeSecondsWithoutAGet = 10; | 17 static const int kMaxUnusedSocketLifetimeSecondsWithoutAGet = 10; |
| 18 | 18 |
| 19 ConnectInterceptor::ConnectInterceptor() | 19 ConnectInterceptor::ConnectInterceptor() |
| 20 : timed_cache_(base::TimeDelta::FromSeconds( | 20 : timed_cache_(base::TimeDelta::FromSeconds( |
| 21 kMaxUnusedSocketLifetimeSecondsWithoutAGet)) { | 21 kMaxUnusedSocketLifetimeSecondsWithoutAGet)) { |
| 22 net::URLRequest::RegisterRequestInterceptor(this); | 22 net::URLRequest::Deprecated::RegisterRequestInterceptor(this); |
| 23 } | 23 } |
| 24 | 24 |
| 25 ConnectInterceptor::~ConnectInterceptor() { | 25 ConnectInterceptor::~ConnectInterceptor() { |
| 26 net::URLRequest::UnregisterRequestInterceptor(this); | 26 net::URLRequest::Deprecated::UnregisterRequestInterceptor(this); |
| 27 } | 27 } |
| 28 | 28 |
| 29 net::URLRequestJob* ConnectInterceptor::MaybeIntercept( | 29 net::URLRequestJob* ConnectInterceptor::MaybeIntercept( |
| 30 net::URLRequest* request) { | 30 net::URLRequest* request) { |
| 31 GURL request_scheme_host(Predictor::CanonicalizeUrl(request->url())); | 31 GURL request_scheme_host(Predictor::CanonicalizeUrl(request->url())); |
| 32 if (request_scheme_host == GURL::EmptyGURL()) | 32 if (request_scheme_host == GURL::EmptyGURL()) |
| 33 return NULL; | 33 return NULL; |
| 34 | 34 |
| 35 // Learn what URLs are likely to be needed during next startup. | 35 // Learn what URLs are likely to be needed during next startup. |
| 36 LearnAboutInitialNavigation(request_scheme_host); | 36 LearnAboutInitialNavigation(request_scheme_host); |
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| 116 } | 116 } |
| 117 return mru_cache_.end() != mru_cache_.Peek(url); | 117 return mru_cache_.end() != mru_cache_.Peek(url); |
| 118 } | 118 } |
| 119 | 119 |
| 120 void ConnectInterceptor::TimedCache::SetRecentlySeen(const GURL& url) { | 120 void ConnectInterceptor::TimedCache::SetRecentlySeen(const GURL& url) { |
| 121 DCHECK_EQ(url.GetWithEmptyPath(), url); | 121 DCHECK_EQ(url.GetWithEmptyPath(), url); |
| 122 mru_cache_.Put(url, base::TimeTicks::Now()); | 122 mru_cache_.Put(url, base::TimeTicks::Now()); |
| 123 } | 123 } |
| 124 | 124 |
| 125 } // namespace chrome_browser_net | 125 } // namespace chrome_browser_net |
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