Refactor of ProfileInfoCache in c/b/notifications

ui/message_center/notifier_settings.cc

 // Copyright (c) 2013 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 "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "ui/message_center/notifier_settings.h"
 
 namespace message_center {
 
@@ skipping 45 matching lines @@
     : notifier_id(notifier_id),
       name(name),
       enabled(enabled) {
 }
 
 Notifier::~Notifier() {
 }
 
 NotifierGroup::NotifierGroup(const gfx::Image& icon,
                              const base::string16& name,
-                             const base::string16& login_info,
-                             size_t index)
-    : icon(icon), name(name), login_info(login_info), index(index) {}
+                             const base::string16& login_info)
+    : icon(icon), name(name), login_info(login_info) {}
 
 NotifierGroup::~NotifierGroup() {}
 
 }  // namespace message_center