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Side by Side Diff: net/base/sdch_dictionary_fetcher.h

Issue 423813002: Sdch view for net-internals (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Create Dictionary JSON directly in SdchManager::SdchInfoToValue Created 6 years, 4 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 // Support modularity by calling to load a new SDCH filter dictionary. 5 // Support modularity by calling to load a new SDCH filter dictionary.
6 // Note that this sort of calling can't be done in the /net directory, as it has 6 // Note that this sort of calling can't be done in the /net directory, as it has
7 // no concept of the HTTP cache (which is only visible at the browser level). 7 // no concept of the HTTP cache (which is only visible at the browser level).
8 8
9 #ifndef NET_BASE_SDCH_DICTIONARY_FETCHER_H_ 9 #ifndef NET_BASE_SDCH_DICTIONARY_FETCHER_H_
10 #define NET_BASE_SDCH_DICTIONARY_FETCHER_H_ 10 #define NET_BASE_SDCH_DICTIONARY_FETCHER_H_
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47 // page subresources (or tabs opened in parallel) all suggest the dictionary. 47 // page subresources (or tabs opened in parallel) all suggest the dictionary.
48 static const int kMsDelayFromRequestTillDownload = 100; 48 static const int kMsDelayFromRequestTillDownload = 100;
49 49
50 // Ensure the download after the above delay. 50 // Ensure the download after the above delay.
51 void ScheduleDelayedRun(); 51 void ScheduleDelayedRun();
52 52
53 // Make sure we're processing (or waiting for) the the arrival of the next URL 53 // Make sure we're processing (or waiting for) the the arrival of the next URL
54 // in the |fetch_queue_|. 54 // in the |fetch_queue_|.
55 void StartFetching(); 55 void StartFetching();
56 56
57 // Report sdch problem to netlog and add histogram.
58 void LogSdchProblem(SdchManager::ProblemCodes problem, GURL url) const;
59
57 // Implementation of URLFetcherDelegate. Called after transmission 60 // Implementation of URLFetcherDelegate. Called after transmission
58 // completes (either successfully or with failure). 61 // completes (either successfully or with failure).
59 virtual void OnURLFetchComplete(const URLFetcher* source) OVERRIDE; 62 virtual void OnURLFetchComplete(const URLFetcher* source) OVERRIDE;
60 63
61 SdchManager* const manager_; 64 SdchManager* const manager_;
62 65
63 // A queue of URLs that are being used to download dictionaries. 66 // A queue of URLs that are being used to download dictionaries.
64 std::queue<GURL> fetch_queue_; 67 std::queue<GURL> fetch_queue_;
65 // The currently outstanding URL fetch of a dicitonary. 68 // The currently outstanding URL fetch of a dicitonary.
66 // If this is null, then there is no outstanding request. 69 // If this is null, then there is no outstanding request.
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84 // bandwidth trying repeatedly). 87 // bandwidth trying repeatedly).
85 // The following set lists all the dictionary URLs that we've tried to load, 88 // The following set lists all the dictionary URLs that we've tried to load,
86 // so that we won't try to load from an URL more than once. 89 // so that we won't try to load from an URL more than once.
87 // TODO(jar): Try to augment the SDCH proposal to include this restiction. 90 // TODO(jar): Try to augment the SDCH proposal to include this restiction.
88 std::set<GURL> attempted_load_; 91 std::set<GURL> attempted_load_;
89 92
90 // Store the system_url_request_context_getter to use it when we start 93 // Store the system_url_request_context_getter to use it when we start
91 // fetching. 94 // fetching.
92 scoped_refptr<URLRequestContextGetter> context_; 95 scoped_refptr<URLRequestContextGetter> context_;
93 96
97 BoundNetLog net_log_;
98
94 DISALLOW_COPY_AND_ASSIGN(SdchDictionaryFetcher); 99 DISALLOW_COPY_AND_ASSIGN(SdchDictionaryFetcher);
95 }; 100 };
96 101
97 } // namespace net 102 } // namespace net
98 103
99 #endif // NET_BASE_SDCH_DICTIONARY_FETCHER_H_ 104 #endif // NET_BASE_SDCH_DICTIONARY_FETCHER_H_
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