USB 2.0 layout on 2-layer board
You can check the line impedance on many WEB sites, for example:
http://www.hughescircuits.com/index.php/en/support/impedance-calculator

However: the impedance matching becomes important when the line length is longer than 5-10% of wavelength. The wavelength on FR4 PCB is 2e8/f (length in m, frequency in Hz).