This one seems to be a browser zoom problem; the height of the brown top bar is bigger than mine - if I set the zoom to 125% they're equal.
Try if you have can reset it with
Ctrl + 0 (zero) - it doesn't do any harm if it wasn't the zoom.
If that doesn't help, check the Windows display scaling (I ran into that problem when I got me a new laptop -.-)
Right click on desktop > Display settings > Scale and layout [Change the size of text, apps, and other items]
Is that value 125%? If yes, you can either change it here to 100% (affects your whole computer - smaller text and icons etc), or change it for Chrome alone (
how-to)