Table schema:
CREATE TABLE table_14903999_1 (womens_doubles VARCHAR, mixed_doubles VARCHAR)

Question: How many womens doubles had champions the years broddi kristjánsson drífa harðardóttir won mixed doubles
SQL: SELECT COUNT(womens_doubles) FROM table_14903999_1 WHERE mixed_doubles = "Broddi Kristjánsson Drífa Harðardóttir"