Remove PrerenderManager.enabled_ and related members.

chrome/browser/profiles/profile_impl.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/profiles/profile_impl.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 966 matching lines @@
 #endif
 
   g_browser_process->profile_manager()->InitProfileUserPrefs(this);
 
   BrowserContextDependencyManager::GetInstance()->CreateBrowserContextServices(
       this);
 
   DCHECK(!net_pref_observer_);
   {
     TRACE_EVENT0("browser", "ProfileImpl::OnPrefsLoaded:NetPrefObserver")
-    net_pref_observer_.reset(new NetPrefObserver(
-        prefs_.get(),
-        prerender::PrerenderManagerFactory::GetForProfile(this),
-        predictor_));
+    net_pref_observer_.reset(new NetPrefObserver(prefs_.get()));
   }
 
   chrome_prefs::SchedulePrefsFilePathVerification(path_);
 
   ChromeVersionService::OnProfileLoaded(prefs_.get(), IsNewProfile());
   DoFinalInit();
 }
 
 bool ProfileImpl::WasCreatedByVersionOrLater(const std::string& version) {
   Version profile_version(ChromeVersionService::GetVersion(prefs_.get()));
@@ skipping 454 matching lines @@
       domain_reliability::DomainReliabilityServiceFactory::GetInstance()->
           GetForBrowserContext(this);
   if (!service)
     return scoped_ptr<domain_reliability::DomainReliabilityMonitor>();
 
   return service->CreateMonitor(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
       local_state,
       prefs::kMetricsReportingEnabled);
 }