WASHINGTON, Dec 16 (Reuters) - U.S. House Speaker Nancy Pelosi supports adding legislation passed by the Senate this week, which would bar federal government employees from using Chinese-owned TikTok on government-owned devices, to a government funding bill. A spokesman for Pelosi confirmed a report by news website Punchbowl that she supports including the TikTok provision in legislation to fund the government that the House of Representatives is set to take up next week. Pelosi's support, along with that of Representative Kevin McCarthy, the top House Republican, significantly boosts the chances the provision will be adopted next week. The Senate on...