CREATE TABLE table_26258348_4 (winning_constructor VARCHAR, fastest_lap VARCHAR)

How many winning constructor catagories are there when Mark Webber had the fastest lap?
SELECT COUNT(winning_constructor) FROM table_26258348_4 WHERE fastest_lap = "Mark Webber"
SELECT COUNT("winning_constructor") FROM "table_26258348_4" WHERE "Mark Webber" = "fastest_lap"