Here is how you can do it -

First of all Type: "chrome://flags/" in your address bar.


Enable syncing open tabs and syncing custom search engines in Google Chrome.


Now you have to scroll down to the bottom of the page and click on “Relaunch now” to restart Google Chrome.


Now go to the options page.
Choose “Personal stuff” and click “Customize” under your Google Chrome sync profile.

You should get the option to sync open tabs and all your custom search engines. And yes, its done!