Disable ProfileKeyedServices on import process by default.

chrome/browser/profiles/profile_io_data.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_io_data.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 242 matching lines @@
       protocol_handler_registry->CreateJobInterceptorFactory();
 
   ChromeProxyConfigService* proxy_config_service =
       ProxyServiceFactory::CreateProxyConfigService();
   params->proxy_config_service.reset(proxy_config_service);
   profile->GetProxyConfigTracker()->SetChromeProxyConfigService(
       proxy_config_service);
 #if defined(ENABLE_MANAGED_USERS)
   ManagedUserService* managed_user_service =
       ManagedUserServiceFactory::GetForProfile(profile);
-  params->managed_mode_url_filter =
-      managed_user_service->GetURLFilterForIOThread();
+  if (managed_user_service) {
+    params->managed_mode_url_filter =
+        managed_user_service->GetURLFilterForIOThread();
+  }
 #endif
 
   params->profile = profile;
   profile_params_.reset(params.release());
 
   ChromeNetworkDelegate::InitializePrefsOnUIThread(
       &enable_referrers_,
       &enable_do_not_track_,
       &force_safesearch_,
       pref_service);
@@ skipping 558 matching lines @@
 void ProfileIOData::SetCookieSettingsForTesting(
     CookieSettings* cookie_settings) {
   DCHECK(!cookie_settings_.get());
   cookie_settings_ = cookie_settings;
 }
 
 void ProfileIOData::set_signin_names_for_testing(
     SigninNamesOnIOThread* signin_names) {
   signin_names_.reset(signin_names);
 }