Change more base::ListValue methods to use std::unique_ptr.

chrome/browser/chromeos/login/users/chrome_user_manager_impl.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/chromeos/login/users/chrome_user_manager_impl.h"
 
 #include <stddef.h>
 
 #include <cstddef>
 #include <set>
@@ skipping 778 matching lines @@
     if (supervised_user_manager_->CheckForFirstRun(account_id.GetUserEmail())) {
       SetIsCurrentUserNew(true);
       WallpaperManager::Get()->SetUserWallpaperNow(account_id);
     } else {
       SetIsCurrentUserNew(false);
     }
   }
 
   // Add the user to the front of the user list.
   ListPrefUpdate prefs_users_update(GetLocalState(), kRegularUsers);
-  prefs_users_update->Insert(0,
-                             new base::StringValue(account_id.GetUserEmail()));
+  prefs_users_update->Insert(
+      0, base::MakeUnique<base::StringValue>(account_id.GetUserEmail()));
   users_.insert(users_.begin(), active_user_);
 
   // Now that user is in the list, save display name.
   if (IsCurrentUserNew()) {
     SaveUserDisplayName(GetActiveUser()->GetAccountId(),
                         GetActiveUser()->GetDisplayName());
   }
 
   GetUserImageManager(account_id)->UserLoggedIn(IsCurrentUserNew(), true);
   WallpaperManager::Get()->EnsureLoggedInUserWallpaperLoaded();
@@ skipping 419 matching lines @@
 bool ChromeUserManagerImpl::ShouldReportUser(const std::string& user_id) const {
   const base::ListValue& reporting_users =
       *(GetLocalState()->GetList(kReportingUsers));
   base::StringValue user_id_value(FullyCanonicalize(user_id));
   return !(reporting_users.Find(user_id_value) == reporting_users.end());
 }
 
 void ChromeUserManagerImpl::AddReportingUser(const AccountId& account_id) {
   ListPrefUpdate users_update(GetLocalState(), kReportingUsers);
   users_update->AppendIfNotPresent(
-      new base::StringValue(account_id.GetUserEmail()));
+      base::MakeUnique<base::StringValue>(account_id.GetUserEmail()));
 }
 
 void ChromeUserManagerImpl::RemoveReportingUser(const AccountId& account_id) {
   ListPrefUpdate users_update(GetLocalState(), kReportingUsers);
   users_update->Remove(
       base::StringValue(FullyCanonicalize(account_id.GetUserEmail())), NULL);
 }
 
 void ChromeUserManagerImpl::UpdateLoginState(
     const user_manager::User* active_user,
@@ skipping 92 matching lines @@
       break;
     default:
       NOTREACHED();
       break;
   }
 
   return user;
 }
 
 }  // namespace chromeos