I'm not sure we know exactly what kind of review it is. I think it also depends what she signed up for, explicitly or implicitly. What were the expectations around freedom to publish?
It is a review that every paper submitted to a conference or a journal from Google has to go through. In fact I believe one has to do that prior to even submitting the paper to external peer review. That at least was the interpretation every researcher I knew at Google was operating under.
