Earlier quoted context omitted.
This isn't a bribe, and there's no lobbying. This is a sort of weird form of "tactical retreat" in the lawsuit. By conceding on the damages the government is demanding (or at least the ones Google thinks the DOJ can prove), Google is taking the issue of damages off the table, and they believe that this takes the demand for a jury trial off the table. They are taking the loss to avoid having a jury trial.
Your comment did not in any way refute the claim that this would be considered a bribe in other countries. It's an exchange of money for a favorable (to them) change in the legal process, which seems like a reasonable definition to me.
In this case the payment is part of the judicial process, and achieves its goals even if it isn't accepted. So it clearly isn't a bribe.