c/b/supervised_user: Use range-based for where appropriate.

chrome/browser/supervised_user/chromeos/manager_password_service.cc

 // Copyright 2014 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/supervised_user/chromeos/manager_password_service.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/values.h"
@@ skipping 27 matching lines @@
                  weak_ptr_factory_.GetWeakPtr()));
 
   authenticator_ = new ExtendedAuthenticator(this);
 
   SupervisedUserManager* supervised_user_manager =
       ChromeUserManager::Get()->GetSupervisedUserManager();
 
   const user_manager::UserList& users =
       user_manager::UserManager::Get()->GetUsers();
 
-  for (user_manager::UserList::const_iterator it = users.begin();
-       it != users.end();
-       ++it) {
-    if ((*it)->GetType() != user_manager::USER_TYPE_SUPERVISED)
+  for (const auto* user : users) {
+    if (user->GetType() != user_manager::USER_TYPE_SUPERVISED)
       continue;
-    if (user_id != supervised_user_manager->GetManagerUserId((*it)->email()))
+    if (user_id != supervised_user_manager->GetManagerUserId(user->email()))
       continue;
     OnSharedSettingsChange(
-        supervised_user_manager->GetUserSyncId((*it)->email()),
+        supervised_user_manager->GetUserSyncId(user->email()),
         supervised_users::kChromeOSPasswordData);
   }
 }
 
 void ManagerPasswordService::OnSharedSettingsChange(
     const std::string& su_id,
     const std::string& key) {
   if (key != supervised_users::kChromeOSPasswordData)
     return;
 
@@ skipping 201 matching lines @@
 void ManagerPasswordService::OnOldManagerKeyDeleted(
     const UserContext& master_key_context) {
   VLOG(1) << "Removed old master key for " << master_key_context.GetUserID();
 }
 
 void ManagerPasswordService::Shutdown() {
   settings_service_subscription_.reset();
 }
 
 }  // namespace chromeos