Revert of This CL replaces user_manager::UserID with AccountId.

chrome/browser/chromeos/profiles/profile_helper.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 "chrome/browser/chromeos/profiles/profile_helper.h"
 
 #include "base/barrier_closure.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 152 matching lines @@
           chromeos::switches::kStubCrosSettings)) {
     return true;
   }
 
   if (!profile)
     return false;
   const user_manager::User* user =
       ProfileHelper::Get()->GetUserByProfile(profile);
   if (!user)
     return false;
-  return user->GetAccountId() ==
-         user_manager::UserManager::Get()->GetOwnerAccountId();
+  return user->email() == user_manager::UserManager::Get()->GetOwnerEmail();
 }
 
 // static
 bool ProfileHelper::IsPrimaryProfile(const Profile* profile) {
   if (!profile)
     return false;
   const user_manager::User* user =
       ProfileHelper::Get()->GetUserByProfile(profile);
   if (!user)
     return false;
@@ skipping 241 matching lines @@
   user_to_profile_for_testing_[user] = profile;
 }
 
 // static
 std::string ProfileHelper::GetUserIdHashByUserIdForTesting(
     const std::string& user_id) {
   return user_id + kUserIdHashSuffix;
 }
 
 }  // namespace chromeos