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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 "components/previews/core/previews_io_data.h" | 5 #include "components/previews/core/previews_io_data.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
9 #include "base/files/file_path.h" | 9 #include "base/files/file_path.h" |
10 #include "base/location.h" | 10 #include "base/location.h" |
11 #include "base/memory/ptr_util.h" | 11 #include "base/memory/ptr_util.h" |
| 12 #include "base/metrics/histogram.h" |
12 #include "base/sequenced_task_runner.h" | 13 #include "base/sequenced_task_runner.h" |
13 #include "base/time/default_clock.h" | 14 #include "base/time/default_clock.h" |
14 #include "components/previews/core/previews_black_list.h" | 15 #include "components/previews/core/previews_black_list.h" |
15 #include "components/previews/core/previews_opt_out_store.h" | 16 #include "components/previews/core/previews_opt_out_store.h" |
16 #include "components/previews/core/previews_ui_service.h" | 17 #include "components/previews/core/previews_ui_service.h" |
17 #include "net/nqe/network_quality_estimator.h" | 18 #include "net/nqe/network_quality_estimator.h" |
18 #include "net/url_request/url_request.h" | 19 #include "net/url_request/url_request.h" |
19 #include "net/url_request/url_request_context.h" | 20 #include "net/url_request/url_request_context.h" |
20 #include "url/gurl.h" | 21 #include "url/gurl.h" |
21 | 22 |
22 namespace previews { | 23 namespace previews { |
23 | 24 |
| 25 namespace { |
| 26 |
| 27 void LogPreviewsEligibilityReason(PreviewsEligibilityReason status, |
| 28 PreviewsType type) { |
| 29 switch (type) { |
| 30 case PreviewsType::OFFLINE: |
| 31 UMA_HISTOGRAM_ENUMERATION( |
| 32 "Previews.EligibilityReason.Offline", static_cast<int>(status), |
| 33 static_cast<int>(PreviewsEligibilityReason::LAST)); |
| 34 break; |
| 35 default: |
| 36 NOTREACHED(); |
| 37 } |
| 38 } |
| 39 |
| 40 } // namespace |
| 41 |
24 PreviewsIOData::PreviewsIOData( | 42 PreviewsIOData::PreviewsIOData( |
25 const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner, | 43 const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner, |
26 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner) | 44 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner) |
27 : ui_task_runner_(ui_task_runner), | 45 : ui_task_runner_(ui_task_runner), |
28 io_task_runner_(io_task_runner), | 46 io_task_runner_(io_task_runner), |
29 weak_factory_(this) {} | 47 weak_factory_(this) {} |
30 | 48 |
31 PreviewsIOData::~PreviewsIOData() {} | 49 PreviewsIOData::~PreviewsIOData() {} |
32 | 50 |
33 void PreviewsIOData::Initialize( | 51 void PreviewsIOData::Initialize( |
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
66 DCHECK(io_task_runner_->BelongsToCurrentThread()); | 84 DCHECK(io_task_runner_->BelongsToCurrentThread()); |
67 previews_black_list_->ClearBlackList(begin_time, end_time); | 85 previews_black_list_->ClearBlackList(begin_time, end_time); |
68 } | 86 } |
69 | 87 |
70 bool PreviewsIOData::ShouldAllowPreview(const net::URLRequest& request, | 88 bool PreviewsIOData::ShouldAllowPreview(const net::URLRequest& request, |
71 PreviewsType type) const { | 89 PreviewsType type) const { |
72 if (!IsPreviewsTypeEnabled(type)) | 90 if (!IsPreviewsTypeEnabled(type)) |
73 return false; | 91 return false; |
74 // The blacklist will disallow certain hosts for periods of time based on | 92 // The blacklist will disallow certain hosts for periods of time based on |
75 // user's opting out of the preview | 93 // user's opting out of the preview |
76 if (!previews_black_list_ || | 94 if (!previews_black_list_) { |
77 !previews_black_list_->IsLoadedAndAllowed(request.url(), type)) { | 95 LogPreviewsEligibilityReason( |
| 96 PreviewsEligibilityReason::BLACKLIST_UNAVAILABLE, type); |
| 97 return false; |
| 98 } |
| 99 PreviewsEligibilityReason status = |
| 100 previews_black_list_->IsLoadedAndAllowed(request.url(), type); |
| 101 if (status != PreviewsEligibilityReason::ALLOWED) { |
| 102 LogPreviewsEligibilityReason(status, type); |
78 return false; | 103 return false; |
79 } | 104 } |
80 net::NetworkQualityEstimator* network_quality_estimator = | 105 net::NetworkQualityEstimator* network_quality_estimator = |
81 request.context()->network_quality_estimator(); | 106 request.context()->network_quality_estimator(); |
82 if (!network_quality_estimator) | 107 if (!network_quality_estimator || |
| 108 network_quality_estimator->GetEffectiveConnectionType() < |
| 109 net::EFFECTIVE_CONNECTION_TYPE_OFFLINE) { |
| 110 LogPreviewsEligibilityReason( |
| 111 PreviewsEligibilityReason::NETWORK_QUALITY_UNAVAILABLE, type); |
83 return false; | 112 return false; |
84 | 113 } |
85 net::EffectiveConnectionType effective_connection_type = | 114 if (network_quality_estimator->GetEffectiveConnectionType() > |
86 network_quality_estimator->GetEffectiveConnectionType(); | 115 net::EFFECTIVE_CONNECTION_TYPE_SLOW_2G) { |
87 return effective_connection_type >= net::EFFECTIVE_CONNECTION_TYPE_OFFLINE && | 116 LogPreviewsEligibilityReason(PreviewsEligibilityReason::NETWORK_NOT_SLOW, |
88 effective_connection_type <= net::EFFECTIVE_CONNECTION_TYPE_SLOW_2G; | 117 type); |
| 118 return false; |
| 119 } |
| 120 LogPreviewsEligibilityReason(PreviewsEligibilityReason::ALLOWED, type); |
| 121 return true; |
89 } | 122 } |
90 | 123 |
91 } // namespace previews | 124 } // namespace previews |
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