Make PasswordFormManager::best_matches_ const

components/autofill/core/common/password_form.h

 // 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.
 
 #ifndef COMPONENTS_AUTOFILL_CORE_COMMON_PASSWORD_FORM_H__
 #define COMPONENTS_AUTOFILL_CORE_COMMON_PASSWORD_FORM_H__
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 278 matching lines @@
 // True if the unique keys for the forms are the same. The unique key is
 // (origin, username_element, username_value, password_element, signon_realm).
 bool ArePasswordFormUniqueKeyEqual(const PasswordForm& left,
                                    const PasswordForm& right);
 
 // A comparator for the unique key.
 struct LessThanUniqueKey {
   bool operator()(const PasswordForm* left, const PasswordForm* right) const;
 };
 
-// Map username to PasswordForm* for convenience. See password_form_manager.h.
-using PasswordFormMap = std::map<base::string16, std::unique_ptr<PasswordForm>>;
-
-// Like PasswordFormMap, but with weak (not owned) pointers.
-using ConstPasswordFormMap = std::map<base::string16, const PasswordForm*>;
-
 // For testing.
 std::ostream& operator<<(std::ostream& os, PasswordForm::Layout layout);
 std::ostream& operator<<(std::ostream& os, const PasswordForm& form);
 std::ostream& operator<<(std::ostream& os, PasswordForm* form);
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_COMMON_PASSWORD_FORM_H__