There was all that talk that someone else made the foul ball call, but FP is right, it was very clearly CB calling it initially.
So what exactly happened? The batter clearly wasn't acting like he tipped it. He was running to first like he would for a strikeout in the dirt. So, I guess CB called it a foul, then no one paid attention to him since it clearly wasn't, so he thought he'd cover up for himself and call it an out and hope no one noticed. But Ron Washington must have noticed and said "Hey you called it a foul". So did CB go to the other umpires and ask if he did call it a foul, and they said, "yeah, I think you did". So he thought "oh, well I guess we better go with that then".
Clearly he was the one who first called it foul, and clearly his intention was to let the game end anyway.