Chrome for Android, Note 10.1 2014: Where is the share web address button? I'm missing the three-dot button in the right end of the address bar.

I am not sure if it even was there in the first place, but on other Android tablets it is, I just checked at the local Samsung store. 

Am I really supposed to share url's by copy-pasting into other apps? If so, is there an extension to bypass this limitation?
On the Note 10.1, and most Samsung devices, you use the physical menu button to bring up the menu instead of the on-screen three-dots icon. You'll find Share... on that menu as usual.