Shareholders select the board members. The board members determine the overall plan and direction of the company. The C-Suite ( CEO, CTO, CFO, etc ) execute the plan of and follow the directions of the board.
If the board members want to make drastic changes, they can ask the shareholders to vote on it. If the shareholders don't like certain board members or the changes or direction of the company, then can vote to remove board members and put in members they want.
https://www.investopedia.com/ask/answers/040315/what-can-sha...
Normally, the CEOs do what the board wants and the board have a fiduciary duty to make money for the shareholders. So unless we have a rogue CEO going against the wishes of the board or shareholders, it's highly likely that most of the shareholders will support google's ambitions in china.
Do you think shareholders would have voted for Apple to leave china and leave tens of billions in revenue and profits on the table?
If anything, shareholders are probably asking google's board why google isn't doing business in china already.