[wildmusings]

>What is that speculation based on? Why wouldn't Google want more browsers to be able to Cast?

You have to remember how Google's business works. Ads on search is a massive part (majority?) of their revenue. The main reason for Chrome existing is to direct people to Google search via the address bar.

[TD-Linux]

Chrome now uploads all browsing history associated with a Google login too, so it's a lot of extra valuable information for ads.