Squeeky sound from the front tires only when she is going straight. Goes away when she is either braking or when the wheel is turned. Are these rotors?

 

Here are the possible squeeky causes that I've experienced:

1. Rotors might be tilted a little
2. Brake pads are worn out
3. The metal sheet on the back of brake pads might slide out and hit your rotors (if your brake pads have them)