Poll CanPredictNetworkActions in Predictor class.

chrome/browser/net/net_pref_observer.cc

 // 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"
@@ skipping 22 matching lines @@
   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);
 }