From the Chrome application, tap the Menu Key (in the Front Touch Keys bar) > Settings > Accessibility.
Drag the Text scaling slider along the bar to adjust the text size scaling. The Preview box displays how it will appear on webpages.
From the Chrome application, tap the Menu Key (in the Front Touch Keys bar) > Settings > Accessibility.
Checkmark the Force enable zoom checkbox to override a site's zoom functionality and allow zooming in or out.