Remove IsUserAffiliated()'s obsolete dependency on enrollment domain.

chrome/browser/chromeos/login/users/affiliation.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AFFILIATION_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AFFILIATION_H_
 
 #include <set>
 #include <string>
 
 namespace chromeos {
 
 typedef std::set<std::string> AffiliationIDSet;
 
 // Returns true if there is at least one common element in two sets.
 // Complexity: O(n + m), where n - size of the first set, m - size of
 // the second set.
 bool HaveCommonElement(const std::set<std::string>& set1,
                        const std::set<std::string>& set2);
 
-// TODO(peletskyi): Remove email and enterprise domain after affiliation
-// based implementation will fully work. http://crbug.com/515476
+// TODO(peletskyi): Remove email after affiliation based implementation will
+// fully work. http://crbug.com/515476
 // The function makes a decision if user with |user_affiliation_ids| and
 // |email| is affiliated on the device with |device_affiliation_ids| and
 // |enterprise_domain|.
 bool IsUserAffiliated(const AffiliationIDSet& user_affiliation_ids,
                       const AffiliationIDSet& device_affiliation_ids,
-                      const std::string& email,
-                      const std::string& enterprise_domain);
+                      const std::string& email);
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_AFFILIATION_H_