I think the answer is obvious, but not because I have some moral reason behind it. I think it really comes down to the actors involved and what their current responsibilities are.

I can't imagine today's pedestrians assume a driver will attempt to preserve their life over the lives of the people in the car. So as a pedestrian you take measures to avoid putting the driver of the car into those situations.

I think it's reasonable to assume a driver's objective is self preservation and preservation of his/her passengers before preservation of people outside of the car.

I can certainly imagine a scenario where a person driving by themselves might make different decisions because they can't imagine living through an event where they were responsible for killing others, and didn't do everything they could to prevent harming others. But then what if there are passengers? I have a dilemma of attempting to preserve others' lives in the car and outside of the car. Are we honestly going to ask our drivers to "rate" each passenger? ie. If Joe is in the car with me, I could care less if he survives a horrible crash because he slept with my wife, so you can feel free to kill us both in extreme circumstances. If Mary is in the car with me by all means do everything you can to preserve her life. She has kids and a husband and is happily married.

The objective of the driver (and thus driverless vehicle) is to transport the driver and passengers safely. They shouldn't attempt to actively reduce likelihood of achieving that objective in order to preserve non-passengers.