Oct 11 (Reuters) - Facebook Inc"s (FB.O) oversight board, a body set up by the social network to give independent verdicts on a small number of thorny content decisions, said on Monday it would meet with former employee and whistleblower Frances Haugen in the coming weeks. (https://bit.ly/2YDUKtO) Haugen revealed last week she was the person who provided documents used in a Wall Street Journal investigation and a Senate hearing on Instagram"s harm to teenage girls.