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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 #include "chrome/browser/net/prediction_options.h" | 5 #include "chrome/browser/net/prediction_options.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "chrome/browser/profiles/profile_io_data.h" | 8 #include "chrome/browser/profiles/profile_io_data.h" |
9 #include "chrome/common/pref_names.h" | 9 #include "chrome/common/pref_names.h" |
10 #include "components/pref_registry/pref_registry_syncable.h" | 10 #include "components/pref_registry/pref_registry_syncable.h" |
11 #include "components/prefs/pref_service.h" | 11 #include "components/prefs/pref_service.h" |
12 #include "content/public/browser/browser_thread.h" | 12 #include "content/public/browser/browser_thread.h" |
13 #include "net/base/network_change_notifier.h" | 13 #include "net/base/network_change_notifier.h" |
14 | 14 |
15 namespace chrome_browser_net { | 15 namespace chrome_browser_net { |
16 | 16 |
17 namespace { | 17 namespace { |
18 | 18 |
19 // Since looking up preferences and current network connection are presumably | 19 // Since looking up preferences and current network connection are presumably |
20 // both cheap, we do not cache them here. | 20 // both cheap, we do not cache them here. |
21 NetworkPredictionStatus CanPrefetchAndPrerender( | 21 NetworkPredictionStatus CanPrefetchAndPrerender( |
22 int network_prediction_options) { | 22 int network_prediction_options) { |
23 switch (network_prediction_options) { | 23 switch (network_prediction_options) { |
24 case NETWORK_PREDICTION_ALWAYS: | 24 case NETWORK_PREDICTION_ALWAYS: |
25 break; | 25 case NETWORK_PREDICTION_WIFI_ONLY: |
26 case NETWORK_PREDICTION_NEVER: | |
27 return NetworkPredictionStatus::DISABLED_ALWAYS; | |
28 default: | |
29 DCHECK_EQ(NETWORK_PREDICTION_WIFI_ONLY, network_prediction_options); | |
30 if (net::NetworkChangeNotifier::IsConnectionCellular( | 26 if (net::NetworkChangeNotifier::IsConnectionCellular( |
31 net::NetworkChangeNotifier::GetConnectionType())) { | 27 net::NetworkChangeNotifier::GetConnectionType())) { |
32 return NetworkPredictionStatus::DISABLED_DUE_TO_NETWORK; | 28 return NetworkPredictionStatus::DISABLED_DUE_TO_NETWORK; |
| 29 } else { |
| 30 return NetworkPredictionStatus::ENABLED; |
33 } | 31 } |
| 32 default: |
| 33 DCHECK_EQ(NETWORK_PREDICTION_NEVER, network_prediction_options); |
| 34 return NetworkPredictionStatus::DISABLED_ALWAYS; |
34 } | 35 } |
35 return NetworkPredictionStatus::ENABLED; | |
36 } | 36 } |
37 | 37 |
38 bool CanPreresolveAndPreconnect(int network_prediction_options) { | 38 bool CanPreresolveAndPreconnect(int network_prediction_options) { |
39 // DNS preresolution and TCP preconnect are performed even on cellular | 39 // DNS preresolution and TCP preconnect are performed even on cellular |
40 // networks if the user setting is WIFI_ONLY. | 40 // networks if the user setting is WIFI_ONLY. |
41 return network_prediction_options != NETWORK_PREDICTION_NEVER; | 41 return network_prediction_options != NETWORK_PREDICTION_NEVER; |
42 } | 42 } |
43 | 43 |
44 } // namespace | 44 } // namespace |
45 | 45 |
(...skipping 28 matching lines...) Expand all Loading... |
74 } | 74 } |
75 | 75 |
76 bool CanPreresolveAndPreconnectUI(PrefService* prefs) { | 76 bool CanPreresolveAndPreconnectUI(PrefService* prefs) { |
77 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); | 77 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); |
78 DCHECK(prefs); | 78 DCHECK(prefs); |
79 return CanPreresolveAndPreconnect( | 79 return CanPreresolveAndPreconnect( |
80 prefs->GetInteger(prefs::kNetworkPredictionOptions)); | 80 prefs->GetInteger(prefs::kNetworkPredictionOptions)); |
81 } | 81 } |
82 | 82 |
83 } // namespace chrome_browser_net | 83 } // namespace chrome_browser_net |
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