This CL replaces user_manager::UserID with AccountId.

chrome/browser/chromeos/app_mode/kiosk_app_manager.cc

 // Copyright 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 "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
 
 #include <map>
 #include <set>
 
 #include "base/barrier_closure.h"
@@ skipping 20 matching lines @@
 #include "chrome/browser/extensions/external_loader.h"
 #include "chrome/browser/extensions/external_provider_impl.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chromeos/chromeos_paths.h"
 #include "chromeos/cryptohome/async_method_caller.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/settings/cros_settings_names.h"
 #include "components/ownership/owner_key_util.h"
+#include "components/signin/core/account_id/account_id.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/common/extension_urls.h"
 
 namespace chromeos {
 
 namespace {
 
 // Domain that is used for kiosk-app account IDs.
 const char kKioskAppAccountDomain[] = "kiosk-apps";
@@ skipping 582 matching lines @@
       new_app->Load();
     }
     CancelDelayedCryptohomeRemoval(it->user_id);
   }
 
   base::Closure cryptohomes_barrier_closure;
 
   const user_manager::User* active_user =
       user_manager::UserManager::Get()->GetActiveUser();
   if (active_user) {
-    std::string active_user_id = active_user->GetUserID();
+    const AccountId active_account_id = active_user->GetAccountId();
     for (const auto& it : old_apps) {
-      if (it.second->user_id() == active_user_id) {
+      if (it.second->user_id() == active_account_id.GetUserEmail()) {
         VLOG(1) << "Currently running kiosk app removed from policy, exiting";
         cryptohomes_barrier_closure = BarrierClosure(
             old_apps.size(), base::Bind(&chrome::AttemptUserExit));
         break;
       }
     }
   }
 
   // Clears cache and deletes the remaining old data.
   std::vector<std::string> apps_to_remove;
@@ skipping 109 matching lines @@
   *cache_dir = user_data_dir.AppendASCII(kCrxCacheDir);
 }
 
 void KioskAppManager::GetCrxUnpackDir(base::FilePath* unpack_dir) {
   base::FilePath temp_dir;
   base::GetTempDir(&temp_dir);
   *unpack_dir = temp_dir.AppendASCII(kCrxUnpackDir);
 }
 
 }  // namespace chromeos