Thank you Google, these tiny improvements will sure come handy when you - one API change at a time - kill uBlock and forever US to watch CPU hungry ads again...
>We called this project Native Window Occlusion, because we had to know about the location of native, non-Chrome windows on the user’s screen. (The location information is discarded immediately after it is used in the occlusion calculation.)
I love how they lost so much trust that they even have to clarify that.