Remove NetPrefObserver class and two prefs that do not do anything.

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 <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 26 matching lines @@
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/content_settings/cookie_settings_factory.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/dom_distiller/profile_utils.h"
 #include "chrome/browser/domain_reliability/service_factory.h"
 #include "chrome/browser/download/chrome_download_manager_delegate.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
-#include "chrome/browser/net/net_pref_observer.h"
 #include "chrome/browser/net/predictor.h"
 #include "chrome/browser/net/proxy_service_factory.h"
 #include "chrome/browser/permissions/permission_manager.h"
 #include "chrome/browser/permissions/permission_manager_factory.h"
 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/policy/profile_policy_connector.h"
 #include "chrome/browser/policy/profile_policy_connector_factory.h"
 #include "chrome/browser/policy/schema_registry_service.h"
 #include "chrome/browser/policy/schema_registry_service_factory.h"
@@ skipping 782 matching lines @@
   prefs_->SetBoolean(prefs::kSessionExitedCleanly, true);
 
   g_browser_process->profile_manager()->InitProfileUserPrefs(this);
 
   {
     SCOPED_UMA_HISTOGRAM_TIMER("Profile.CreateBrowserContextServicesTime");
     BrowserContextDependencyManager::GetInstance()->
       CreateBrowserContextServices(this);
   }
 
-  DCHECK(!net_pref_observer_);
-  {
-    TRACE_EVENT0("browser", "ProfileImpl::OnPrefsLoaded:NetPrefObserver")
-    net_pref_observer_.reset(new NetPrefObserver(prefs_.get()));
-  }
-
   ChromeVersionService::OnProfileLoaded(prefs_.get(), IsNewProfile());
   DoFinalInit();
 }
 
 void ProfileImpl::OnPrefsLoaded(CreateMode create_mode, bool success) {
   TRACE_EVENT0("browser", "ProfileImpl::OnPrefsLoaded");
   if (!success) {
     if (delegate_)
       delegate_->OnProfileCreated(this, false, false);
     return;
@@ skipping 414 matching lines @@
 ProfileImpl::CreateDomainReliabilityMonitor(PrefService* local_state) {
   domain_reliability::DomainReliabilityService* service =
       domain_reliability::DomainReliabilityServiceFactory::GetInstance()->
           GetForBrowserContext(this);
   if (!service)
     return std::unique_ptr<domain_reliability::DomainReliabilityMonitor>();
 
   return service->CreateMonitor(
       BrowserThread::GetTaskRunnerForThread(BrowserThread::IO));
 }