LOS ANGELES — The Walgreens drugstore chain has adopted a company policy that allows people to use the bathroom that corresponds with their gender identity after a customer said she was discriminated against in a Hollywood store. Jessie Meehan, who is not transgender, said she asked to use the restroom at a Walgreens on Sunset Boulevard after she spent about $20 on items there on her way to the LGBTQ Pride festival last year; a sales associate told her she could not use the women’s restroom because she looked like a man.