[autofill] Add support for PSL domain matching for password autofill.

components/autofill/common/password_form_fill_data.h

Index: components/autofill/common/password_form_fill_data.h
diff --git a/components/autofill/common/password_form_fill_data.h b/components/autofill/common/password_form_fill_data.h
index 1c6091a80d0f43e19c8ac6a382be129a05606348..fd0d00dd1eed193fbe9cbff3898c714038f384e6 100644
--- a/components/autofill/common/password_form_fill_data.h
+++ b/components/autofill/common/password_form_fill_data.h
@@ -6,6 +6,7 @@
 #define COMPONENTS_AUTOFILL_COMMON_PASSWORD_FORM_FILL_DATA_H_
 
 #include <map>
+#include <set>
 
 #include "base/memory/scoped_ptr.h"
 #include "components/autofill/common/form_data.h"
@@ -44,7 +45,11 @@ struct PasswordFormFillData {
                    std::vector<base::string16> > UsernamesCollection;
 
   FormData basic_data;
-  LoginCollection additional_logins;
+  base::string16 preferred_realm;
+  bool preferred_is_psl_origin_match;
+  LoginCollection additional_logins_passwords;
+  LoginCollection additional_logins_realms;
+  std::set<base::string16> additional_logins_is_psl_origin_match;
   UsernamesCollection other_possible_usernames;
   bool wait_for_username;
   PasswordFormFillData();