Use PrefChangeRegistrar everywhere

chrome/browser/translate/translate_manager.h

Index: chrome/browser/translate/translate_manager.h
diff --git a/chrome/browser/translate/translate_manager.h b/chrome/browser/translate/translate_manager.h
index adec2814b1a0c2682587e32021e1fd9dcb82b695..3ddcabfb2ce1b4ec484503d4b67da3bf87e66ea6 100644
--- a/chrome/browser/translate/translate_manager.h
+++ b/chrome/browser/translate/translate_manager.h
@@ -14,6 +14,7 @@
 #include "base/lazy_instance.h"
 #include "base/singleton.h"
 #include "base/task.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/common/net/url_fetcher.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
@@ -153,6 +154,7 @@ class TranslateManager : public NotificationObserver,
       TabContents* tab);
 
   NotificationRegistrar notification_registrar_;
+  PrefChangeRegistrar pref_change_registrar_;
 
   // A map that associates a profile with its parsed "accept languages".
   typedef std::set<std::string> LanguageSet;