Use PrefChangeRegistrar everywhere

chrome/browser/translate/translate_manager.cc

 // Copyright (c) 2010 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/translate/translate_manager.h"
 
 #include "app/resource_bundle.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/histogram.h"
@@ skipping 231 matching lines @@
       break;
     }
     case NotificationType::PROFILE_DESTROYED: {
       Profile* profile = Source<Profile>(source).ptr();
       notification_registrar_.Remove(this, NotificationType::PROFILE_DESTROYED,
                                      source);
       size_t count = accept_languages_.erase(profile->GetPrefs());
       // We should know about this profile since we are listening for
       // notifications on it.
       DCHECK(count > 0);
-      profile->GetPrefs()->RemovePrefObserver(prefs::kAcceptLanguages, this);
+      pref_change_registrar_.Remove(prefs::kAcceptLanguages, this);
       break;
     }
     case NotificationType::PREF_CHANGED: {
       DCHECK(*Details<std::string>(details).ptr() == prefs::kAcceptLanguages);
       PrefService* prefs = Source<PrefService>(source).ptr();
       InitAcceptLanguages(prefs);
       break;
     }
     default:
       NOTREACHED();
@@ skipping 72 matching lines @@
   notification_registrar_.Add(this, NotificationType::PAGE_TRANSLATED,
                               NotificationService::AllSources());
 }
 
 void TranslateManager::InitiateTranslation(TabContents* tab,
                                            const std::string& page_lang) {
   PrefService* prefs = tab->profile()->GetPrefs();
   if (!prefs->GetBoolean(prefs::kEnableTranslate))
     return;
 
+  pref_change_registrar_.Init(prefs);
+
   // Allow disabling of translate from the command line to assist with
   // automated browser testing.
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableTranslate))
     return;
 
   NavigationEntry* entry = tab->controller().GetActiveEntry();
   if (!entry) {
     // This can happen for popups created with window.open("").
     return;
   }
@@ skipping 172 matching lines @@
   PrefService* pref_service = tab->profile()->GetPrefs();
   PrefServiceLanguagesMap::const_iterator iter =
       accept_languages_.find(pref_service);
   if (iter == accept_languages_.end()) {
     InitAcceptLanguages(pref_service);
     // Listen for this profile going away, in which case we would need to clear
     // the accepted languages for the profile.
     notification_registrar_.Add(this, NotificationType::PROFILE_DESTROYED,
                                 Source<Profile>(tab->profile()));
     // Also start listening for changes in the accept languages.
-    tab->profile()->GetPrefs()->AddPrefObserver(prefs::kAcceptLanguages, this);
+    pref_change_registrar_.Add(prefs::kAcceptLanguages, this);
 
     iter = accept_languages_.find(pref_service);
   }
 
   return iter->second.count(language) != 0;
 }
 
 void TranslateManager::InitAcceptLanguages(PrefService* prefs) {
   // We have been asked for this profile, build the languages.
   std::string accept_langs_str = prefs->GetString(prefs::kAcceptLanguages);
@@ skipping 62 matching lines @@
 TranslateInfoBarDelegate* TranslateManager::GetTranslateInfoBarDelegate(
     TabContents* tab) {
   for (int i = 0; i < tab->infobar_delegate_count(); ++i) {
     TranslateInfoBarDelegate* delegate =
         tab->GetInfoBarDelegateAt(i)->AsTranslateInfoBarDelegate();
     if (delegate)
       return delegate;
   }
   return NULL;
 }