Remove PrefObserver usage, batch 9.

chrome/browser/policy/url_blacklist_manager.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/policy/url_blacklist_manager.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
 #include "base/string_number_conversions.h"
@@ skipping 260 matching lines @@
 }
 
 URLBlacklistManager::URLBlacklistManager(PrefService* pref_service)
     : ALLOW_THIS_IN_INITIALIZER_LIST(ui_weak_ptr_factory_(this)),
       pref_service_(pref_service),
       ALLOW_THIS_IN_INITIALIZER_LIST(io_weak_ptr_factory_(this)),
       blacklist_(new URLBlacklist) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   pref_change_registrar_.Init(pref_service_);
-  pref_change_registrar_.Add(prefs::kUrlBlacklist, this);
-  pref_change_registrar_.Add(prefs::kUrlWhitelist, this);
+  base::Closure callback = base::Bind(&URLBlacklistManager::ScheduleUpdate,
+                                      base::Unretained(this));
+  pref_change_registrar_.Add(prefs::kUrlBlacklist, callback);
+  pref_change_registrar_.Add(prefs::kUrlWhitelist, callback);
 
   // Start enforcing the policies without a delay when they are present at
   // startup.
   if (pref_service_->HasPrefPath(prefs::kUrlBlacklist))
     Update();
 }
 
 void URLBlacklistManager::ShutdownOnUIThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // Cancel any pending updates, and stop listening for pref change updates.
   ui_weak_ptr_factory_.InvalidateWeakPtrs();
   pref_change_registrar_.RemoveAll();
 }
 
 URLBlacklistManager::~URLBlacklistManager() {
 }
 
-void URLBlacklistManager::OnPreferenceChanged(PrefServiceBase* prefs,
-                                              const std::string& pref_name) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(prefs == pref_service_);
-  DCHECK(pref_name == prefs::kUrlBlacklist ||
-         pref_name == prefs::kUrlWhitelist);
-  ScheduleUpdate();
-}
-
 void URLBlacklistManager::ScheduleUpdate() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // Cancel pending updates, if any. This can happen if two preferences that
   // change the blacklist are updated in one message loop cycle. In those cases,
   // only rebuild the blacklist after all the preference updates are processed.
   ui_weak_ptr_factory_.InvalidateWeakPtrs();
   MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&URLBlacklistManager::Update,
                  ui_weak_ptr_factory_.GetWeakPtr()));
@@ skipping 44 matching lines @@
 
 // static
 void URLBlacklistManager::RegisterPrefs(PrefService* pref_service) {
   pref_service->RegisterListPref(prefs::kUrlBlacklist,
                                  PrefService::UNSYNCABLE_PREF);
   pref_service->RegisterListPref(prefs::kUrlWhitelist,
                                  PrefService::UNSYNCABLE_PREF);
 }
 
 }  // namespace policy