Just for discussion, are you looking for the Chrome equivalent of the FireFox Tools/Options/Content --> Fonts settings?
No. I am looking to be able to change the fonts for the UI elements of the browser itself. Similar to Firefox theme font size changer AddOn.
The labels on the tabs aren't so bad. But the statusbar font is a bit small. On chrome forums they either say change the theme, which I could spend days doing without finding one where all is good, or change the Windows MessageBox text size. The trouble with changing the MessageBox text size is message boxes for programs can then be larger than the desktop work area since they auto adjust to fit all the text in the box.
Edit: If I can't make the statusbar font larger even if I could change it to semi-bold it might make it easier to read.