There's an ICO for that.[1] Really. They want to offer browser based virtual reality which mines tokens in the background. The initial token sale is in progress now. The virtual reality system appears to be total vaporware.
Monero isn't efficiently mined on GPUs (it works better on CPUs which is why it's so popular for browser mining already), but other cryptos with equihash algorithms, sure.
Low level GPU access will just make it easier for them to run montero miners on my browser.