Well you got me, just had the windshield replaced today, diden't do too bad allmost two years. I don't know why for some reason the dots seemed to jump out now, just don't rember them from the old one.
they are there so the factory robotics that install the glass have a place to align the suction cups to the windshield to insure proper placement. If the windshields are not placed perfectly on the racks next to the assembly line the robot still can self align and pick up each windshield in the exact same spot.
I just had a feeling Skybot exists and that the T-3000's were slowly infiltrating us humans threw mind control as our Fj's will certainly be a worthy machine in the overall master plan to take total control!!!
They are part of the targeting and control system for incoming rocks... flying rocks on their way in lock into the dots and are able to then precisely target the weak spots in the front glass and crack it.