| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/net/net_pref_observer.h" |
| |
| #include "base/prefs/pref_service.h" |
| #include "chrome/browser/chrome_notification_types.h" |
| #include "chrome/browser/net/predictor.h" |
| #include "chrome/browser/prerender/prerender_manager.h" |
| #include "chrome/common/pref_names.h" |
| #include "components/user_prefs/pref_registry_syncable.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "net/http/http_stream_factory.h" |
| |
| using content::BrowserThread; |
| |
| NetPrefObserver::NetPrefObserver(PrefService* prefs, |
| prerender::PrerenderManager* prerender_manager, |
| chrome_browser_net::Predictor* predictor) |
| : prerender_manager_(prerender_manager), |
| predictor_(predictor) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| DCHECK(prefs); |
| DCHECK(predictor); |
| |
| base::Closure prefs_callback = base::Bind(&NetPrefObserver::ApplySettings, |
| base::Unretained(this)); |
| network_prediction_enabled_.Init(prefs::kNetworkPredictionEnabled, prefs, |
| prefs_callback); |
| spdy_disabled_.Init(prefs::kDisableSpdy, prefs, prefs_callback); |
| |
| ApplySettings(); |
| } |
| |
| NetPrefObserver::~NetPrefObserver() { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| } |
| |
| void NetPrefObserver::ApplySettings() { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| |
| predictor_->EnablePredictor(*network_prediction_enabled_); |
| if (prerender_manager_) |
| prerender_manager_->set_enabled(*network_prediction_enabled_); |
| if (spdy_disabled_.IsManaged()) |
| net::HttpStreamFactory::set_spdy_enabled(!*spdy_disabled_); |
| } |
| |
| // static |
| void NetPrefObserver::RegisterProfilePrefs( |
| user_prefs::PrefRegistrySyncable* registry) { |
| registry->RegisterBooleanPref( |
| prefs::kNetworkPredictionEnabled, |
| true, |
| user_prefs::PrefRegistrySyncable::SYNCABLE_PREF); |
| registry->RegisterBooleanPref( |
| prefs::kDisableSpdy, |
| false, |
| user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); |
| } |