Remove the last usages of PrefObserver outside of Prefs.

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 176 matching lines @@
   params->profile = profile;
   profile_params_.reset(params.release());
 
   ChromeNetworkDelegate::InitializePrefsOnUIThread(
       &enable_referrers_,
       &enable_do_not_track_,
       &force_safesearch_,
       pref_service);
 
 #if defined(ENABLE_PRINTING)
-  printing_enabled_.Init(prefs::kPrintingEnabled, pref_service, NULL);
+  printing_enabled_.Init(prefs::kPrintingEnabled, pref_service);
   printing_enabled_.MoveToThread(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
 #endif
   chrome_http_user_agent_settings_.reset(
       new ChromeHttpUserAgentSettings(pref_service));
 
   // These members are used only for one click sign in, which is not enabled
   // in incognito mode.  So no need to initialize them.
   if (!is_incognito()) {
     signin_names_.reset(new SigninNamesOnIOThread());
 
-    google_services_username_.Init(prefs::kGoogleServicesUsername, pref_service,
-                                   NULL);
+    google_services_username_.Init(prefs::kGoogleServicesUsername,
+                                   pref_service);
     google_services_username_.MoveToThread(
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
 
     google_services_username_pattern_.Init(
-        prefs::kGoogleServicesUsernamePattern, local_state_pref_service, NULL);
+        prefs::kGoogleServicesUsernamePattern, local_state_pref_service);
     google_services_username_pattern_.MoveToThread(
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
 
     reverse_autologin_enabled_.Init(
-        prefs::kReverseAutologinEnabled, pref_service, NULL);
+        prefs::kReverseAutologinEnabled, pref_service);
     reverse_autologin_enabled_.MoveToThread(
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
 
     one_click_signin_rejected_email_list_.Init(
-        prefs::kReverseAutologinRejectedEmailList, pref_service, NULL);
+        prefs::kReverseAutologinRejectedEmailList, pref_service);
     one_click_signin_rejected_email_list_.MoveToThread(
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
   }
 
   // The URLBlacklistManager has to be created on the UI thread to register
   // observers of |pref_service|, and it also has to clean up on
   // ShutdownOnUIThread to release these observers on the right thread.
   // Don't pass it in |profile_params_| to make sure it is correctly cleaned up,
   // in particular when this ProfileIOData isn't |initialized_| during deletion.
 #if defined(ENABLE_CONFIGURATION_POLICY)
@@ skipping 214 matching lines @@
   // Just fetch the value from ChromeOS' settings while we're on the UI thread.
   // TODO(stevet): For now, this value is only set on profile initialization.
   // We will want to do something similar to the PrefMember method below in the
   // future to more accurately capture this state.
   chromeos::CrosSettings::Get()->GetBoolean(chromeos::kStatsReportingPref,
                                             &enable_metrics_);
 #else
   // Prep the PrefMember and send it to the IO thread, since this value will be
   // read from there.
   enable_metrics_.Init(prefs::kMetricsReportingEnabled,
-                       g_browser_process->local_state(),
-                       NULL);
+                       g_browser_process->local_state());
   enable_metrics_.MoveToThread(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO));
 #endif  // defined(OS_CHROMEOS)
 }
 
 bool ProfileIOData::GetMetricsEnabledStateOnIOThread() const {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 #if defined(OS_CHROMEOS)
   return enable_metrics_;
 #else
@@ skipping 277 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);
 }