Change text of DNS prefetch option to Network prediction option.

chrome/browser/net/net_pref_observer.cc

 // Copyright (c) 2011 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/task.h"
 #include "chrome/browser/net/predictor_api.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prerender/prerender_manager.h"
@@ skipping 14 matching lines @@
       enforce);
 }
 
 }
 
 NetPrefObserver::NetPrefObserver(PrefService* prefs,
                                  prerender::PrerenderManager* prerender_manager)
     : prerender_manager_(prerender_manager) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(prefs);
-  dns_prefetching_enabled_.Init(prefs::kDnsPrefetchingEnabled, prefs, this);
+  network_prediction_enabled_.Init(prefs::kNetworkPredictionEnabled, prefs,
+                                   this);
   spdy_disabled_.Init(prefs::kDisableSpdy, prefs, this);
   http_throttling_enabled_.Init(prefs::kHttpThrottlingEnabled, prefs, this);
 
   ApplySettings(NULL);
 }
 
 NetPrefObserver::~NetPrefObserver() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 }
 
 void NetPrefObserver::Observe(NotificationType type,
                               const NotificationSource& source,
                               const NotificationDetails& details) {
   DCHECK_EQ(type.value, NotificationType::PREF_CHANGED);
 
   std::string* pref_name = Details<std::string>(details).ptr();
   ApplySettings(pref_name);
 }
 
 void NetPrefObserver::ApplySettings(const std::string* pref_name) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
-  chrome_browser_net::EnablePredictor(*dns_prefetching_enabled_);
+  chrome_browser_net::EnablePredictor(*network_prediction_enabled_);
   if (prerender_manager_)
-    prerender_manager_->set_enabled(*dns_prefetching_enabled_);
+    prerender_manager_->set_enabled(*network_prediction_enabled_);
   net::HttpStreamFactory::set_spdy_enabled(!*spdy_disabled_);
 
   if (!pref_name || *pref_name == prefs::kHttpThrottlingEnabled) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         NewRunnableFunction(SetEnforceThrottlingOnThrottlerManager,
                             *http_throttling_enabled_));
   }
 }
 
 // static
 void NetPrefObserver::RegisterPrefs(PrefService* prefs) {
+  prefs->RegisterBooleanPref(prefs::kNetworkPredictionEnabled, true);
   prefs->RegisterBooleanPref(prefs::kDisableSpdy, false);
   prefs->RegisterBooleanPref(prefs::kHttpThrottlingEnabled, false);
 }