According to Google, it's currently not possible to merge two different accounts. It's possible, however, to move data out of certain products, namely:
- Bookmarks (Export and import)
- Contacts (Export and import)
- Finance: Export and Import
- iGoogle (To transfer data, create your own backup and restore it to
the new account through XML)
- Picasa Web Albums
- Places (bulk upload)
Unfortunately, Chrome isn't currently on the list of the supported products. More information about merging accounts here.
However, there's another way to achieve this, albeit using a third-party extension. Xmarks allows you to sync your bookmarks to all of your devices that have Xmarks installed. It also allows you to set up Profiles, which gives you the ability to separate bookmarks according to your needs.
Assign bookmarks to sync profiles
Assign sync profiles to computers
This page walks you through the process of setting this up.