1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "chrome/browser/net/net_pref_observer.h" 6 7 #include "base/bind.h" 8 #include "base/logging.h" 9 #include "base/prefs/pref_service.h" 10 #include "chrome/common/pref_names.h" 11 #include "components/pref_registry/pref_registry_syncable.h" 12 #include "content/public/browser/browser_thread.h" 13 #include "net/http/http_stream_factory.h" 14 15 using content::BrowserThread; 16 NetPrefObserver(PrefService * prefs)17NetPrefObserver::NetPrefObserver(PrefService* prefs) { 18 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 19 DCHECK(prefs); 20 21 base::Closure prefs_callback = base::Bind(&NetPrefObserver::ApplySettings, 22 base::Unretained(this)); 23 spdy_disabled_.Init(prefs::kDisableSpdy, prefs, prefs_callback); 24 25 ApplySettings(); 26 } 27 ~NetPrefObserver()28NetPrefObserver::~NetPrefObserver() { 29 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 30 } 31 ApplySettings()32void NetPrefObserver::ApplySettings() { 33 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 34 35 if (spdy_disabled_.IsManaged()) 36 net::HttpStreamFactory::set_spdy_enabled(!*spdy_disabled_); 37 } 38 39 // static RegisterProfilePrefs(user_prefs::PrefRegistrySyncable * registry)40void NetPrefObserver::RegisterProfilePrefs( 41 user_prefs::PrefRegistrySyncable* registry) { 42 registry->RegisterBooleanPref( 43 prefs::kNetworkPredictionEnabled, 44 true, 45 user_prefs::PrefRegistrySyncable::SYNCABLE_PREF); 46 registry->RegisterBooleanPref( 47 prefs::kDisableSpdy, 48 false, 49 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); 50 } 51