(Reuters) - Chinese internet giant Tencent Holdings Ltd is in talks to invest $200 million (162.5 million pounds) in Warner Music Group, ahead of the record company's slated initial public offering next week, the Wall Street Journal reported on Friday.Warner Music is also working to line up institutions that, along with Tencent, would serve as anchor investors contributing a total of more than $1 billion toward a fundraising goal of as much as $1.8 billion, the report added, citing people..