Eliminate unnecessary forward declarations from components/password_manager

components/password_manager/core/browser/psl_matching_helper.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_PASSWORD_MANAGER_CORE_BROWSER_PSL_MATCHING_HELPER_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PSL_MATCHING_HELPER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 
 class GURL;
 
-namespace autofill {
-struct PasswordForm;
-}  // namespace autofill
-
 namespace password_manager {
 
 // Enum used for histogram tracking PSL Domain triggering.
 // New entries should only be added to the end of the enum (before *_COUNT) so
 // as to not disrupt existing data.
 enum PSLDomainMatchMetric {
   PSL_DOMAIN_MATCH_NOT_USED = 0,
   PSL_DOMAIN_MATCH_NONE,
   PSL_DOMAIN_MATCH_FOUND,
   PSL_DOMAIN_MATCH_COUNT
@@ skipping 17 matching lines @@
 bool IsPublicSuffixDomainMatch(const std::string& url1,
                                const std::string& url2);
 
 // Two hosts are considered to belong to the same website when they share the
 // registry-controlled domain part.
 std::string GetRegistryControlledDomain(const GURL& signon_realm);
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PSL_MATCHING_HELPER_H_