The Chrome web browser and google docs (or drive) treats printing a little different then the Mac. But you can still save documents as PDF's for easy sharing.
Click file print.
Next you will see googles print dialog box (see below). We want to click on that change button under destination.
You will now see the "Select a Destination" window. Click on Save as PDF
This will return you to the googles print dialog box. Now Click save.
You will then be asked to save the pdf. Give it a name, select your save location, and click save.
And your Done!