Or they could do something awful to Chrome.
Point is, the longer Google can postpone any such occupancies, the longer they can delay a drop in their stock market price (because surely such an event would have a negative effect on their stock, both for rational reasons [such as less telemetry data] and irrational [day traders] reasons).
And yes, of course this is pure conjecture. I’m not Larry Page in disguise spilling the beans of Alphabet’s Boardroom musings.